1993 Ford Escort FUEL PUMP CIRCUIT (RELAY & INERTIA SWITCH)

Download 1993 Ford Escort G – TESTS W/CODES – EEC-IV (1.9L)’ ’1993 ENGINE PERFORMANCE Ford Motor Co. – Self-Diagnostics – EEC-IV. CIRCUIT TEST J – FUEL PUMP CIRCUIT (RELAY & INERTIA SWITCH) Diagnostic Aids When ignition switch is in the ON or START position, the PCM connects FUEL PUMP circuit (PCM terminal No. 22) to ground. The fuel pump relay is energized and electrical current flows to the fuel pump. If PCM does not receive ignition PIP signal within 2 seconds, FUEL PUMP circuit is opened and fuel pump operation is terminated. Perform this test when instructed by QUICK TEST or CIRCUIT TEST AA. This test is only intended to diagnose: * Fuel pump relay. * Inertia Fuel Shutoff (IFS) switch. * Wiring harness circuits (B+, VPWR, FUEL PUMP, GND and POWER-TO-PUMP). * Faulty Powertrain Control Module (PCM). Fig. 31: Fuel Pump Monitor Circuit Diagram (Escort & Tracer) 1)Code 87/556: Check VPWR To Fuel Pump Relay Code 87/556 indicates a fuel pump primary circuit failure.… Read More

1999-2003 FORD SUPER DUTY F SERIES HIGH PRESSURE OIL PUMP LEAK

Download FORD: 1998-2003 E SERIES 1999-2003 SUPER DUTY F SERIES 2000-2003 EXCURSION, F-650, F-750 This article supersedes TSB 03-21-50 to update the WARNING service procedure and illustration. DO NOT REMOVE OR ATTEMPT TO REPAIR A LEAK AT THE PLUG PICTURED IN LOWER LEFT ISSUE CORNER OF FIGURE 1, OR DAMAGE TO THE Some 1998-2003 E-Series, 1999-2003 Super Duty, PUMP WILL RESULT. 2000-2003 Excursion, and 2000-2003 F650/750 1998-2003 E-SERIES HIGH PRESSURE OIL vehicles equipped with a 7.3L Diesel engine may PUMP ACCESS PROCEDURE (DISASSEMBLY) exhibit an oil leak at the high pressure oil pump outlet fittings and/or end plug (see Figure 1). The 1. Remove the Intake Air Resonator. For leak may appear to be a rear main crankshaft seal, additional information, refer to Section 303-12 in oil pan gasket, or other engine oil leak due to the the appropriate Workshop Manual. drain hole machined in the crankcase valley which allows any oil in the valley to run down the back of 2.… Read More

1998 Acura 3.5RL ENGINE PERFORMANCE Basic Diagnostic Procedures

Download 1. Remove fuel tank filler cap. Listen for fuel pump operation noise at fuel tank filler. Fuel pump should operate for 2 seconds after ignition switch is turned on. If fuel pump operates as specified, fuel pump is okay. If fuel pump does not operate as specified, go to next step. 2. Turn ignition switch off. Remove rear seat or trunk floor to gain access to fuel pump connector. Disconnect fuel pump connector. Disconnect PGM-FI main relay connector. Connect a fused jumper wire between PGM-FI main relay connector FUEL PUMP fuse side terminal and fuel pump side terminal. See L – WIRING DIAGRAMS article. 3. Turn ignition switch on. Using a voltmeter connected to ground, check for battery voltage at fuel pump harness side connector. See L – WIRING DIAGRAMS article. If battery voltage is not present, check harness between fuel pump and FUEL PUMP fuse. Repair as necessary. If battery voltage is present, check fuel pump ground.… Read More

Honda Electric Fuel Pump Kit Manual Installation Instructions

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Honda Fuel Pump Kit This kit provides all the part and instructions necessary to add an electric fuel pump to the Honda 20 or 24 engine.
Honda Electric Fuel Pump Installation Instructions – On the ignition side of engine, locate the 10 mm bolt at (1). Remove this bolt and attach the fuel pump . Ensure the fuel pump wires are facing upward. – Attach the other side of the fuel pump (2) to the engine cover using the self-tapping screw. – Attach fuel line (5) to the top and bottom of the fuel pump with hose clamps. The top fuel line goes to the opposite side of the engine and connects to the carburetor inlet. (Place the fuel line hose along the muffler side of the air cleaner. Attach the fuel hose to the air cleaner cover using the wire tie and screw.) – Attach the fuel pump black ground wire (6) to the 10 mm bolt located next to the valve cover.… Read More

2004 Audi A4 Fuel Pump Removing And Installing FWD

Download 2004 Audi A4 L4-1.8L Turbo (AMB) Vehicle Level Powertrain Management Fuel Delivery and Air Induction Fuel Pump Service and Repair Fuel Pump, Removing And Installing FWD. Removing And Installing Fuel Pump CAUTION: To remove the Fuel Pump (FP), the fuel tank may only be filled to a maximum of 3/4. Empty fuel tank if necessary. Recommended special tools and equipment 3087 wrench for tank sensor. VAS5190 fuel siphoning device Empty fuel tank Observe safety precautions. Observe rules for cleanliness. CAUTION: Observe safety precautions when disconnecting the battery. Disconnect battery Ground (GND) strap with the ignition switched off. CAUTION: Secure Ground (GND) wire of VAS5190 to a blank portion of the chassis. Pull cone piece -2- from shaft piece -1- of VAS 5190. Using insulating tape, apply a mark -arrow- on hose at length a = 1465 mm from end of suction hose. Remove fuel filler cap from fuel filler tube.… Read More

VP44 Fuel Pump Can Not Reach Commanded Timing

Download Fault Code: 368 PID: P0216, S254 SPN: 1078 FMI: 8 LAMP: Yellow SRT: The VP44 fuel pump can not achieve the timing value being commanded by the engine electronic control module (ECM) due to an internal pump problem. Engine power derate. White smoke. Circuit Description The VP44 fuel pump uses an internal check to determine if the fuel injection pump can reach the commanded timing. Component Location The VP44 fuel pump circuit is internal to the VP44 fuel pump. Troubleshooting Steps STEPS SPECIFICATIONS STEP 1. Check the fault codes. STEP 1A . Check to see if the fault code is active at engine start-up. Fault Code 368 inactive STEP 2. Perform low pressure system checks. STEP 2A . Install the gauges and record inlet restriction findings. Restriction less than 152 mm Hg [6 in Hg] STEP 2B . Install the gauges and record fuel pressure findings. Fuel pressure at fuel filter inlet less than 34 kPa [5 psi] STEP 2C .… Read More

Edelbrock Pro-Flo EFI Fuel Rail for Honda Acura “B”and “D”Series INSTALLATION INSTRUCTIONS

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• DESCRIPTION: The Edelbrock Honda/Acura Fuel rails, Part # 4794,4796, and 4798, have been designed to fit stock, Edelbrock Victor X, or our Edelbrock Performer X manifolds using stock Honda injectors. Part #4795,4797, and 4799 accept Bosch-style injectors. These fuel rails feature a flow-through design 5/8″fuel passage with -8 AN o-ring threads at each end. They are fully CNC machined from aluminum extrusions, polished, then hard anodized for use with racing fuel (including methanol and alcohol). These fuel rails also include a fuel regulator mounting at the end of the rail that can be used with stock or aftermarket regulators, as well as two auxiliary 1/8″NPT ports for pressure gauge, nitrous system fuel supply, etc.  KIT CONTENTS: ?1 – Fuel Rail ?1 – O-Ring, 1/2″I.D. 1/16″Thick ?1 – Fuel Pressure Regulator Adapter ?2 – O-Ring, -8 AN ?1 – 12mm x1.0 Russell Honda Fuel Fitting (#4794,4795,4796 & 4797 Only) ?4 – O-Ring, 8mm I.D.… Read More

2003 Chevy Truck TrailBlazer Water Pump Replacement

Download 1. Drain the coolant. 2. Remove the fan and shroud. 3. Remove the drive belt . 4. Using the J 41240, secure the water pump pulley and remove the water pump pulley bolts. 5. Remove the J 41240. 6. Remove the water pump pulley. 7. Loosen and remove the water pump bolts. 8. Remove the water pump. 9. Clean and inspect the water pump. 10. Discard and replace the gasket. Installation Procedure 1. Install a new water pump gasket. 2. Install the water pump and secure the water pump with the bolts. Tighten * On the initial pass, tighten the bolts to 4 Nm (35 lb in). * On the final pass, tighten the bolts to 10 Nm (89 lb in). 3. Install the water pump pulley. 4. Install the water pump pulley bolts. 5. Using the J 41240, secure the water pump pulley while tightening the water pump pulley bolts.… Read More

Fuel Pump Timing General Information

Download Pump timing that is off by only a few crankshaft degrees will cause: Poor performance – starting and power. 1. Excessive smoke. 2. Poor fuel economy. 3. Time Engine pump timing begins with the timing of the fuel injection pump drive gear to the camshaft gear. The first step is the location of TDC of the compression stroke for cylinder Number 1. Then, depending on the engine configuration, an alpha character on the injection pump drive gear will possibly need to be aligned with the mark on the camshaft gear. To verify that the fuel injection pump is timed correctly, first check the alignment marks on the pump flange and gear housing. NOTE: 1 mm of rotation past the timing mark will advance or retard (depending on direction of rotation) the pump timing by 1 degree. The Lucas CAV DPA, DPS, Delphi DP210, Stanadyne DB4, and the Bosch® VE fuel injection pumps all have a provision for locking the pump shaft at a position corresponding to top dead center for cylinder Number 1.… Read More

2004 Ford Truck Explorer ERRATIC FUEL GAUGE OPERATION

Download 2004 Ford Truck Explorer 4WD V8-4.6L SOHC VIN W MIL ON WITH DTC P0463 OR ERRATIC FUEL GAUGE OPERATION FORD: 2004-2007 Explorer MERCURY: 2004-2007 Mountaineer This article supersedes TSB 06-16-7 to update the Service Procedure. ISSUE Some 2004-2007 Explorer 4dr/Mountaineer vehicles may exhibit the malfunction indicator lamp (MIL) on with diagnostic trouble code (DTC) P0463 or an erratic fuel gauge concern. This could be from sulphur contamination in the fuel, causing an open or high resistance on the fuel sender card. ACTION Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE 1. For vehicles with customer symptom of erratic fuel gauge operation (with no MIL on), proceed to Step 1a. For vehicles with a customer symptom including the MIL on, proceed to Step 1b. If unable to verify the concern, do not continue with this TSB. a. Follow the appropriate pinpoint test (PPT) for “Fuel Gauge Inaccurate” in Workshop Manual (WSM), Section 413-01.… Read More