This manual concerns about the step for removing and installing the fuel pump for 2004 Audi A4 L4-1.8L Turbo (AMB) vehicle.
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.
Empty fuel tank
Observe safety precautions.
Observe rules for cleanliness.
CAUTION: Observe safety precautions when disconnecting the battery.
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Fuel Pump Circuit Schematic Refer to the schematic diagram and test the system with the diagnostic chart. CHECK FUEL PUMP OPERATION IN “D-CHECK” MODE 1. Connect “Test Mode” connector. [1] 2. Turn ignition “ON.” 3. Check fuel pump for proper operation. Fuel pump should cycle on and off. [1]
Refer to “How To Display and Read Diagnostic Trouble Codes” in COMPUTERS AND CONTROL SYSTEMS.
1. Disconnect relay connector and remove relay from its bracket. 2. Measure resistance of relay coil between terminals #1 and #3. It should read 70 Ohms. 3. Connect 12V to relay coil terminals and check continuity between switching terminals. Connect battery “+” to terminal #1 and battery “-” to terminal #3. Relay should “click” when energized.
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When repairing the oil pump, the oil pan and strainer should be removed and cleaned. 1. REMOVE CRANKSHAFT TIMING PULLEY (See page EM–13) 2. 4WD: REMOVE FRONT DIFFERENTIAL (See page SA–47) 3. DRAIN ENGINE OIL 4. A/T: REMOVE OIL COOLER TUBE AND CLAMP (A340E: See page AT–24) (A340F: See page AT–30) 5. REMOVE REAR END COVER AND DUST COVER 6. DISCONNECT STARTER WIRE CLAMP 7. REMOVE CRANKSHAFT POSITION SENSOR 8. REMOVE OIL PAN (a) Remove the 17 bolts and 2 nuts. (b) Using SST and a brass bar, separate the oil pan Read the rest of this entry »

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REMOVAL 1. REMOVE ENGINE UNDER COVER 2. DRAIN ENGINE COOLANT 3. DISCONNECT UPPER RADIATOR HOSE 4. DISCONNECT PS PUMP FROM ENGINE (a) Disconnect the 2 PS air hoses from the air intake chamber and resonator. (b) Remove the bolt holding the PS pressure tube clamp to the frame. (c) Remove the drive belt (See page SR–3). (d) Remove the bolt and nut, and disconnect the PS pump from the engine. 5. DISCONNECT A/C COMPRESSOR FROM ENGINE (a) Disconnect the A/C compressor connector. (b) Remove the drive belt (See page AC–17). (c) Remove the 4 bolts, and disconnect the A/C compressor from the engine. 6. LOOSEN FAN WITH FLUID COUPLING AND FAN PULLEYS 7. REMOVE Read the rest of this entry »

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Removal, overhaul and installation procedures are covered in this article. If component removal and installation is primarily an unbolt and bolt-on procedure, only a torque specification may be furnished.
NOTE: Mirage 1.6L uses Distributorless Ignition System (DIS). For exploded view of distributor on all other models,
FUEL SYSTEM
WARNING: Always relieve fuel pressure before disconnecting any fuel injection-related component. DO NOT allow fuel to contact engine or electrical components.
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Dual Fueler CP3 Pump Kit Installation Guide 03-07 5.9 Dodge Cummins
Engine noisy – Too Much Fuel Pressure or fuel delivery code
1) Cause: Check fuse is good and in controller’s fuse holder securely, and all power connections are secure, including connectors for both pumps are fully plugged in.
2) Lift pump pressure supplying both CP3 pumps pressure too high. Supply pressure from lift pump should not exceed 12-15 psi.
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The components in this Fuel Injection Test Kit enable the testing of the fuel delivery pressure to the engine. Pressure Gauge (1) connections are made either directly to the pump, or in-line with the pump and engine.
1. Relieve the fuel line pressure from the vehicle fuel system. Refer to the vehicle manufacturer’s service manual for instruction on relieving pressure from the fuel line, testing procedures and connection points, and normal pressure readings.
2. Use the various fittings and hoses to connect the Pressure Gauge (1) directly to the fuel pump, as in the case of the VW®, or in-line with the fuel pump and engine for most other vehicles. See connection examples on the next page.
Use a small amount of pipe compound or teflon tape on the connection threads to prevent leaks. Tighten using a wrench (not supplied).
Caution: Make sure all connections are tight to avoid fuel leaks.
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The evaporative emission system is designed to prevent the escape of fuel vapors from the fuel
system. Leaks in the system, even small ones, can allow fuel vapors to escape into the
atmosphere. Government regulations require onboard Testing to make sure that the evaporative
(EVAP) system is functioning properly. The leak detection system tests for EVAP system leaks
and blockage. It also performs self-diagnostics. During self-diagnostics, the Powertrain Control
Module (PCM) first checks the Leak Detection Pump (LDP) for electrical and mechanical faults.
If the first checks pass, the PCM then uses the LDP to seal the vent valve and pump air into the
system to pressurize it. If a leak is present, the PCM will continue pumping the LDP to replace
the air that leaks out. The PCM determines the size of the leak based on how fast/long it must
pump the LDP as it tries to maintain pressure in the system.
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The engine control unit has a self-diagnosis capability. Before carrying out repairs and fault finding the fault memory must be interrogated. The vacuum hoses and connections must also be checked (unmetered air).
- Fuel hoses in engine compartment must only be secured with spring-type clips. Clamping-type or screw-type clips must not be used.
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Vehicle Application: 2003 Audi A4 1.8L, Vin C, Turbo, Eng Cfg L4, Eng Des AMB
Customer Concern: Unstable Idle, Multiple codes P1136 Bank 1 Mixture adaptation Additive Range System To Lean P1297 Connection Charger to Throttle Valve Loss Of Pressure P0300, P0301, P0302, P0303, P0304 Misfire codes P1479 Brake Booster Vacuum Supply Malfunction
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