January 15, 2013 The function of the fuel system is threefold. First, it meters the amount fuel that is injected into the combustion chamber to achieve the desired horsepower output for the engine. Second, the fuel system regulates the engine speed and the timing sequence of the engine. peg 400 b. mechanically using a swash plate pump. c. hydraulically using fuel as medium. d. mechanically using a cam profile. Technician A only. Technician A says that the Caterpillar HEUI system is a full authority, computer controlled engine management system. Technician B says that some HEUI fueled engines are managed hydromechanically.Common Rail System And Supply Pump Transitions . ... other system is the Hydraulic Electric Unit Injection (HEUI) system, which was developed by Caterpillar ... flex pipe exhaust Jan 1, 2010 · Story by Diesel Power Magazine:. On International’s first go-round with the 7.3L Power Stroke (’94 to ’97), its hydraulically actuated, electronically con- trolled unit injector (HEUI) fuel system was considered a modern marvel and was at the forefront of electronically controlled diesel engines in pickups. susan johnson Paper presenting selected diesel fuel injection systems for heavy- and medium-duty engines, such as the Caterpillar HEUI and MEUI, and Cummins CAPS Quantum CELECT, HPI and XPI systems [DieselNet Technology Guide]. Electronic Fuel Injection Systems for Heavy-Duty Engines DieselNet Technology GuideFuel System Fuel Filters HPI Components 8 HPI Components 1. Pressure Sensor 2. Fuel outlet 3. Test point outlet 4. Fuel inlet 5. Test point inlet 6. Fuel pressure Actuator From the filters, fuel flow is directed to the inlet of the gear pump. The fuel pump is a version of the current PT fuel pump family. dollar99 total move in fort worthAdvanced technology yields higher performance The HEUI (Hydraulically Actuated Electronically Controlled Unit Injector) Fuel System represents one of the most significant innovations in diesel engine technology in decades. HEUI surpasses many of the limitations of mechanical and conventional electronic injectors, and sets new standards for fuel ...Component & System Locations 11 Primer.Pump The primer pump is used to pump fuel to the filter housing, in order to prime the fuel system. Fuel.Filter.Module.Drain The fuel filter module drain is used to drain the module of water or contaminants. Component & System Locations: Left Intake.Throttle.Valve The intake throttle valve is controlled by ... mxhxytm The Navistar DT engine family is a line of mid-range inline-6 diesel engines. With horsepower ratings ranging from 170 hp (130 kW) to 350 hp (260 kW), the Navistar DT engines are used primarily in medium-duty truck and bus applications such as school buses, although some versions have been developed for heavy-duty regional-haul and severe ...Mar 25, 2021 · The HEUI fuel system can perform flexible fuel injection control according to the engine speed and load. By changing the software settings, it can optimize the control of fuel injection pressure, fuel injection volume, fuel injection curve and fuel injection timing. Advantages of HEUI system 20R-0641: Cat® Reman Engine Overhaul Kit HEUI-Powerpack-C7. Cat Reman C7 HEUI fuel system kit includes 6 Cat Reman fuel injectors plus Cat Reman HEUI pump, Injection Actuation Pressure (IAP) sensor, harness, hold-down bolts, seals, and O-rings. †. Step 1: Fill out pump finder above. Step 2: Add the pump to your cart. Step 3: Refer to the diagram on the product page for plumbing or refer back to this page and click the link to your fuel pump diagram. Step 4: Bulk add to cart! The following are the basic solutions to the most common systems. - For more specific variables please call tech at 913-647-73003. Hook-up the tester to the engine fuel system. There are two options for fuel tester to engine hook-up as determined by the ease of access. Option 1-Remove the fuel line from the outlet side of the fuel pump and connect the fuel system testers line in this fuel hose fitting. This hook-up location will require the fuel system shut-off valve ... pnsycn The Navistar DT engine family is a line of mid-range inline-6 diesel engines. With horsepower ratings ranging from 170 hp (130 kW) to 350 hp (260 kW), the Navistar DT engines are used primarily in medium-duty truck and bus applications such as school buses, although some versions have been developed for heavy-duty regional-haul and severe ...HEUI System Upgrade. - YouTube 0:00 / 9:02 How To Make Your Cat C7, 3126, or C9 Bulletproof. HEUI System Upgrade. Adept Ape 209K subscribers Subscribe 2.7K 207K views 5 years ago You can... g37 uprev tune 20R-0669: Cat® Reman Engine Overhaul Kit HEUI-3126E. Cat Reman 3126E HEUI fuel …The HEUI fuel system utilizes a hydraulically actuated electronically controlled unit injector (7) . All fuel systems for diesel engines use a plunger and barrel in order to pump fuel under high pressure into the combustion chamber. This fuel is pumped into the combustion chamber in precise amounts in order to control engine performance. Fuel: spin-on secondary filter, transfer pump Governor: full-range, electronically controlled HEUI™ Fuel System Lifting eyes Lubrication: gear-driven pump, front or rear sump pan, full flow spin-on filter, oil filler, oil level gauge (dipstick) SAE No. 1 or SAE No. 2 flywheel housing Turbocharger Vibration damper DIMENSIONS ACCESSORY EQUIPMENT innovia 3 kiralik daire sahibinden 7.3 Powerstroke HEUI Fuel System The 7.3 Powerstroke has a HEUI —hydraulically actuated electronic unit injection—fuel injection system. I detail it and the 7.3 HPOP—high pressure oil pump—used to actuate the injectors in these three 7.3 HPOP articles: 7.3 HPOP Remove/Replace 7.3 HPOP Buyer’s Guide 7.3 HPOP Leak RepairFind common rail injector pump with free shipping, fast delivery and free return online. Find products of Diagnostic Tools with high quality at AliExpress.The injectors are connected to the fuel injection pump by the high– pressure fuel lines. A separate injector is used for each of the four cylinders. An injector ... annual caravan sites victoria The Navistar DT engine family is a line of mid-range inline-6 diesel engines. With horsepower ratings ranging from 170 hp (130 kW) to 350 hp (260 kW), the Navistar DT engines are used primarily in medium-duty truck and bus applications such as school buses, although some versions have been developed for heavy-duty regional-haul and severe ...The low pressure fuel system consists of five basic components: z Fuel tank Primary fuel filter/water separator Two micron secondary fuel filter Fuel transfer pump Fuel pressure regulator Fuel is drawn from the fuel tank and flows through a thirteen micron primary fuel filter/water separator. emra per djem musliman Figure 1. Schematic Diagram of the Diesel Fuel System. The fuel system includes injectors, integral fuel manifold in the cylinder head, fuel pump, a cooling plate for the Electronic Control Module (ECM) or Electronic Distributor Unit (EDU), a primary fuel filter, a secondary fuel filter, and a fuel check valve if equipped.DIESEL FUEL SYSTEM1 de abr. de 2013 ... We'll answer both of these questions, as well as detail the injector firing process in an HEUI injector. We'll also offer some insight as to why ... chapter 13 bankruptcy payments online The Caterpillar 3126 HEUI Engine introduces a new era of the diesel engine in the bus industry using the medium duty diesel engine. The basic engine takes advantage of the 3116's best features and years of experience and combines this with an electronically controlled fuel system, larger displacement, and other new features to produce the 3126. 8 de jan. de 2015 ... This diagram identifies the external HEUI system components (shown on the engine harness side of this schematic). loreal shampoo and conditioner HEUI System Upgrade. - YouTube 0:00 / 9:02 How To Make Your Cat C7, 3126, or C9 Bulletproof. HEUI System Upgrade. Adept Ape 209K subscribers Subscribe 2.7K 207K views 5 years ago You can... 16 de mar. de 2017 ... SUSCRÍBETE: Dale me Gusta : -_-Pronto estaré subiendo màs tutoriales- sobre sistemas VOLVODonwload : http://raboninco.com/1PACv.20R-0651: Cat® Reman Platinum Engine Overhaul Kit (3126B) Cat Reman 3126B (16.1:1 Compression Ratio) Platinum level engine overhaul kit consists of all parts from Gold kit, plus: Cat Reman cylinder heads, Cat Reman fuel injectors, Cat Reman water pump, Cat Reman oil pump and Cat Reman cylinder packs.3. Hook-up the tester to the engine fuel system. There are two options for fuel tester to engine hook-up as determined by the ease of access. Option 1-Remove the fuel line from the outlet side of the fuel pump and connect the fuel system testers line in this fuel hose fitting. This hook-up location will require the fuel system shut-off valve ... lbfmj The HEUI uses engine lubrication oil that is pressurized from 6 MPa (870 psi) to 28 MPa (4061 psi) in order to pump fuel from the injector. The high pressure oil is called the injection actuation pressure. The HEUI operates in the same way as a hydraulic cylinder in order to multiply the force of the high pressure oil.regulations around the world. Fuel system technology is one of the key building blocks needed to meet these challenges. This paper describes a new and unique fuel injection system - an electronic unit injector with hydraulic actuation. EVOLUTION OF HEUI There were three catalysts instrumental in shaping this new system: 1. A customer, Navistar ... 930270. Caterpillar Inc. has developed a new diesel engine fuel system, … room for rent toronto dollar500 Blog.Teknisi Saturday, December 16, 2017 Fuel System Caterpillar Engine. Fuel System C7 and C9 Industrial Engine.A 5:1 ratio allows an HEUI injector to flow more fuel without requiring more oil volume. 3. …In this system, you actually have two oil pumps. The HEUI or Hydraulic Electronic Unit Injection pump is responsible for using hydraulic force to create injection pressure for your injectors. You're no longer relying on a camshaft for a mechanical transmission of power like in some older engines.sistema-heui-caterpillar ronytecsup 18.5k views • 49 slides CAT Industrial Engine for Drilling Machine Otgontugs Ulziisuren 2.8k views • 22 slides Engine systems diesel engine analyst - parte 3 Servicio Integral Diesel SAC 9.3k views • 21 slides Engine systems diesel engine analyst - part 2 Servicio Integral Diesel SAC 27.2k views • 30 slides flass light The Caterpillar 3126 HEUI Engine introduces a new era of the diesel engine in the bus industry using the medium duty diesel engine. The basic engine takes advantage of the 3116's best features and years of experience and combines this with an electronically controlled fuel system, larger displacement, and other new features to produce the 3126.High-Pressure Oil Pumps: Volume, Not Pressure Instead of a conventional …Basically, the two oils or fuels are the same. Home heating oil 2 and diesel fuel 2 are essentially the same types of fuel or oil. It is when you get to home heating oil 4 or 6 that you will see any significant differences between the two fuels. gun show near me The low pressure fuel system consists of five basic components: z Fuel tank Primary fuel filter/water separator Two micron secondary fuel filter Fuel transfer pump Fuel pressure regulator Fuel is drawn from the fuel tank and flows through a thirteen micron primary fuel filter/water separator.HEUI systems were the first modern injection system that could pressurize … stable diffusion prompt examples 16 de ago. de 2021 ... The HEUI fuel injection system is completely free of adjustments since changes in the operating regime in order to change performance is only ...DT466 engine and DT466E engine school bus and skoolie listings for sale on Skoolie Livin Classifieds.Safarifriends.org - Index pageb. mechanically using a swash plate pump. c. hydraulically using fuel as medium. d. mechanically using a cam profile. Technician A only. Technician A says that the Caterpillar HEUI system is a full authority, computer controlled engine management system. Technician B says that some HEUI fueled engines are managed hydromechanically. houses for rent in concord nc under dollar800 Have a small truck, small bus, or an RV with a Cat Engine in it? Then the odds are you …Study with Quizlet and memorize flashcards containing terms like Introduction, True, Component Locations on an International Trucks I-6 H.E.U.I. Fuel System ...In the actual valve timing diagram, the 'Inlet valve' closes at 30° - 40° after BDC. ... One of the most significant advancements in diesel engine technology is the HEUI Fuel System. Fuel injectors are driven by hydraulic energy rather than mechanical energy in the extremely advanced HUEI system.The HEUI fuel system utilizes a hydraulically actuated electronically controlled unit injector (7) . All fuel systems for diesel engines use a plunger and barrel in order to pump fuel under high pressure into the combustion chamber. This fuel is pumped into the combustion chamber in precise amounts in order to control engine performance. snider blake online application Low-pressure Fuel System (LP.1 - LP.8) Also, check for fuel return aeration and fuel …Cat Reman 3126B HEUI fuel system kit includes 6 Cat Reman fuel injectors plus Cat Reman HEUI pump, Injection Actuation Pressure (IAP) sensor, hold-down bolts, seals, and O-rings. 20R-0669: Cat® Reman Engine Overhaul Kit HEUI-3126E Compression Ratios & Fuel Injection. Compression ratios in diesel engines can be up to 24:1. This high compression ratio causes increased cylinder pressures of 400 to 600 psi, this in turn increases the air temperature inside the cylinder to such a high degree that it ignites the atomized diesel fuel that is injected. wrenn yeatts obituaries danville virginia Discussion Starter · #1 · Sep 6, 2014. Cat 3126 engine fails to start. Monitor injection actuation pressure and its only making 330-365 psi, so I took a high pressure pump off a working engine but this pump is also doing the same 300-360 psi. Replaced all injectors but no luck. Changed IAP valve, change ECM but problem is the same. No fault ...The IDM provides the high voltage and switching signals to turn the injectors on and off. A diagram of the Ford 7.3L HEUI Injection System. toptan bayram sekeri fiyatlari 1 de abr. de 2013 ... We'll answer both of these questions, as well as detail the injector firing process in an HEUI injector. We'll also offer some insight as to why ...1. Verify that there is ample fuel in the fuel tank; if the tank is low, fill the tank with ultra low sulfur fuel. 2. Remove the supply fuel temperature sending unit from the fuel pump. 3. Attach a calibrated fuel gauge capable of reading 0-551 kPa (0-80 psi) to the fuel pump port. Crank-start the engine and record the fuel pressure gauge reading.Hydraulic Electronic Unit Injectors (HEUI) While MEUI systems transfer mechanical energy from the engine camshaft to a rocker arm and plunger-type fuel pump, Hydraulic Electronic Unit Injectors... rollback wrecker for sale in texasAug 4, 2013 · Troubleshooting the hydraulic electronic unit injection (heui) fuel system on c7 and c9 engines {1250} Aug. 04, 2013. • 2 likes • 6,806 views. Download Now. Download to read offline. Education. Troubleshooting del sistema HEUI. jeffermile1984. Follow. Instead of a conventional injection pump, HEUI systems use a high-pressure oil pump. A Bosch high-pressure oil pump (shown) graces the 7.3L Power Stroke. The ...In this system, you actually have two oil pumps. The HEUI or Hydraulic Electronic Unit Injection pump is responsible for using hydraulic force to create ... slender man regulations around the world. Fuel system technology is one of the key building blocks needed to meet these challenges. This paper describes a new and unique fuel injection system - an electronic unit injector with hydraulic actuation. EVOLUTION OF HEUI There were three catalysts instrumental in shaping this new system: 1. A customer, Navistar ... apa 7th edition quiz pdf Jan 15, 2013 · Fuel Injection Systems Rajat Seth • 41.4k views Engine Cooling system kaushal gadariya • 16.8k views Qip ice-12-fuel injection systems Jaydip Yadav • 702 views Ivan Xavier MORALES • 31k views Saran S Nair • 8.5k views cooling and lubrication system naphis ahamad • 14.2k views Altamash Ali • 3k views Fuel supply system in SI engines Advanced technology yields higher performance The HEUI (Hydraulically Actuated Electronically Controlled Unit Injector) Fuel System represents one of the most significant innovations in diesel engine technology in decades. HEUI surpasses many of the limitations of mechanical and conventional electronic injectors, and sets new standards for fuel ...Another test you can do is to load test those power and ground wires. With the OEM connector disconnected at the ECM, jump power one at a time from pin 4 and 6, through a headlight bulb, then ground the headlight to make it come it on. If the wires are in good shape, that headlight will be nice and bright.Hydraulically Actuated Electronic Injector (HEUI) HEUI systems use hydraulic energy from pressurised engine lube oil to drive each injector. The pressure of the incoming oil controls the rate of injection, while the amount of fuel injected is determined by a signal from the ECM.Fuel Injection Systems Rajat Seth • 41.4k views Engine Cooling system kaushal gadariya • 16.8k views Qip ice-12-fuel injection systems Jaydip Yadav • 702 views Ivan Xavier MORALES • 31k views Saran S Nair • 8.5k views cooling and lubrication system naphis ahamad • 14.2k views Altamash Ali • 3k views Fuel supply system in SI engines brand clothes wholesale The Bosch Common Rail System consists of a high-pressure pump, rail, and injector. Bosch Common Rail System. Page 4. 6. 7. When ...Fuel System Fuel Filters HPI Components 8 HPI Components 1. Pressure Sensor 2. Fuel outlet 3. Test point outlet 4. Fuel inlet 5. Test point inlet 6. Fuel pressure Actuator From the filters, fuel flow is directed to the inlet of the gear pump. The fuel pump is a version of the current PT fuel pump family.The revolutionary HEUI injector design is critical to the precision, performance, economy and proven reliability of the HEUI Fuel System. Advanced technology yields higher performance The HEUI … w king speaker Cat Reman 3126B HEUI fuel system kit includes 6 Cat Reman fuel injectors plus Cat Reman HEUI pump, Injection Actuation Pressure (IAP) sensor, hold-down bolts, seals, and O-rings. 20R-0669: Cat® Reman Engine Overhaul Kit HEUI-3126E3 de nov. de 2021 ... Hydraulic Electronic Unit Injectors (HEUI): This computer-controlled system consists of a combined pump and injector for each engine cylinder.The HEUI uses engine lubrication oil that is pressurized from 6 MPa (870 psi) to 28 MPa (4061 psi) in order to pump fuel from the injector. The high pressure oil is called the injection actuation pressure. The HEUI operates in the same way as a hydraulic cylinder in order to multiply the force of the high pressure oil. kapercent27chava bars The HEUI uses engine lubrication oil that is pressurized from 6 MPa (870 psi) to 28 MPa (4061 psi) in order to pump fuel from the injector. The high pressure oil is called the injection actuation pressure. The HEUI operates in the same way as a hydraulic cylinder in order to multiply the force of the high pressure oil. 930270. Caterpillar Inc. has developed a new diesel engine fuel system, … mudurnu otobus saatleri Blog.Teknisi Saturday, December 16, 2017 Fuel System Caterpillar Engine. Fuel System C7 and C9 Industrial Engine.b. mechanically using a swash plate pump. c. hydraulically using fuel as medium. d. mechanically using a cam profile. Technician A only. Technician A says that the Caterpillar HEUI system is a full authority, computer controlled engine management system. Technician B says that some HEUI fueled engines are managed hydromechanically.The system consists of a high-pressure pump, injectors, a rail, and an electronic control unit. The common rail is a long metal cylinder. It receives the fuel from the pump and distributes it to ...The Cat 3126 Heui Pump Diagram, tips, and frequently asked questions …The injectors are connected to the fuel injection pump by the high– pressure fuel lines. A separate injector is used for each of the four cylinders. An injector ... dreammachines of texas -Some low fuel pressure complaints are caused by a worn fuel pressure regulator valve & spring. Kit 1893801C94 is available to remedy this. -Low fuel pressure complaints can be caused by the wrong O-ring being installed on the fuel pump-Fuel pressures above 60 psi will not cause low power or performance complaints on this engineThe HEUI uses engine lubrication oil that is pressurized from 6 MPa (870 psi) to 28 MPa (4061 psi) in order to pump fuel from the injector. The high pressure oil is called the injection actuation pressure. The HEUI operates in the same way as a hydraulic cylinder in order to multiply the force of the high pressure oil. dollar75 free chip Diagram of components for the HEUI fuel system (1) Unit injector hydraulic pump (2) Oil …The engine configuration was the same as the 3126 but the fuel system changed using a new engineered style known as the HEUI injector. The HEUI injector allows for multiple injections at different metered rates. ... Fuel System: HEUI Injection, ACERT Technology: Computer System: ADEM A4 Electronic Control Unit: Dry Weight: 1296 lbs. Height: 40. ...Paper presenting selected diesel fuel injection systems for heavy- and medium-duty engines, such as the Caterpillar HEUI and MEUI, and Cummins CAPS Quantum CELECT, HPI and XPI systems [DieselNet Technology Guide]. Electronic Fuel Injection Systems for Heavy-Duty Engines DieselNet Technology Guide Aug 4, 2013 · sistema-heui-caterpillar ronytecsup 18.5k views • 49 slides CAT Industrial Engine for Drilling Machine Otgontugs Ulziisuren 2.8k views • 22 slides Engine systems diesel engine analyst - parte 3 Servicio Integral Diesel SAC 9.3k views • 21 slides Engine systems diesel engine analyst - part 2 Servicio Integral Diesel SAC 27.2k views • 30 slides Extracted messages from Safari Coaches and Friends related to the HEUI fuel injection system. The second link is the full maintenance manual for the CAT 3126E engine. I do not know the difference between the E and B series. However this manual has served me well for the 3126B.A unit injector (UI) is a high pressure integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in ... isla moon leaked videos The HEUI fuel system utilizes a hydraulically actuated electronically controlled unit injector (7) . All fuel systems for diesel engines use a plunger and barrel in order to pump fuel under high pressure into the combustion chamber. This fuel is pumped into the combustion chamber in precise amounts in order to control engine performance. Discussion Starter · #1 · Nov 3, 2006. “HEUI” stands for Hydraulic Electric Unit Injection, and is the system that International and CAT use on their electronic medium duty diesel engines from approximately 1994 thru 2006 and beyond in some I-6 engines. The HEUI system uses engine oil, highly pressurized, to inject fuel into the cylinders.The HEUI uses engine lubrication oil that is pressurized from 6 MPa (870 psi) to 28 MPa (4061 psi) in order to pump fuel from the injector. The high pressure oil is called the injection actuation pressure. The HEUI operates in the same way as a hydraulic cylinder in order to multiply the force of the high pressure oil. Component & System Locations 11 Primer.Pump The primer pump is used to pump fuel to the filter housing, in order to prime the fuel system. Fuel.Filter.Module.Drain The fuel filter module drain is used to drain the module of water or contaminants. Component & System Locations: Left Intake.Throttle.Valve The intake throttle valve is controlled by ... craigslist denver co cars and trucks by owner High-Pressure Oil Pumps: Volume, Not Pressure Instead of a conventional …20R-0651: Cat® Reman Platinum Engine Overhaul Kit (3126B) Cat Reman 3126B (16.1:1 Compression Ratio) Platinum level engine overhaul kit consists of all parts from Gold kit, plus: Cat Reman cylinder heads, Cat Reman fuel injectors, Cat Reman water pump, Cat Reman oil pump and Cat Reman cylinder packs. 20R-0651: Cat® Reman Platinum Engine Overhaul Kit (3126B) Cat Reman 3126B (16.1:1 Compression Ratio) Platinum level engine overhaul kit consists of all parts from Gold kit, plus: Cat Reman cylinder heads, Cat Reman fuel injectors, Cat Reman water pump, Cat Reman oil pump and Cat Reman cylinder packs. Fuel mixed with oil can be from: 1 - transfer (lift) pump leaking by pump shaft seal. Lift pump is fitted in the back of HEUI pump. 2 - crack on cylinder head. test head with pressure. you have fuel entry and pressure regulator on the other side; easy to test 3 - injector unit seals damaged. unkfcekm -About 50% of the fuel pumps returned to Navistar are not defective (Any part that is found to perform to the original manufacturer™s specification is subject to chargeback of the entire claim amount)-Some low fuel pressure complaints are caused by a worn fuel pressure regulator valve & spring. A kit for this is available. Anyways, the name comes from its DT engine family and 466 cubic inch displacement. An inline-6 design with a 4.59″ x 4.68″ bore and stroke accomplish the displacement. Its cast iron block and cylinder head are heavy, but incredibly beefy and strong. It's a deep skirt block with wet-sleeves. peter attia zone 2 calculation 16 de dez. de 2017 ... -All fuel systems for diesel engines use a plunger and barrel in order to pump fuel under high pressure into the combustion chamber. -The HEUI ...the entire fuel line remains under very high pressure, the 1300 Series EDi's HEUI system uses a dual line rail. Here engine oil at high pressure, rather than the camshaft, provides the muscle to power fuel injection through one line, with the fuel for injection supplied at low pressure, in a second rail. Low noise, low emissions, lowepercent27s home improvement sanford products The operation of the Hydraulic Electronic Unit Injector (HEUI) fuel system is completely different from any other type of fuel system that is actuated mechanically. The HEUI fuel system is completely free of adjustment. Adjustments to the components that are mechanical can not be made. Changes in performance are made by Component & System Locations 11 Primer.Pump The primer pump is used to pump fuel to the filter housing, in order to prime the fuel system. Fuel.Filter.Module.Drain The fuel filter module drain is used to drain the module of water or contaminants. Component & System Locations: Left Intake.Throttle.Valve The intake throttle valve is controlled by ...A fuel pump draws the fuel from the tank through fuel lines and delivers it through a fuel filter to either a carburetor or fuel injector, then delivered to the ...The operation of the Hydraulic Electronic Unit Injector (HEUI) fuel system is completely different from any other type of fuel system that is actuated mechanically. The HEUI fuel system is completely free of adjustment. Adjustments to the components that are mechanical can not be made. Changes in performance are made by equivalent expression calculator with exponents