EEPROM is a permanent memory that is part of PCM. EEPROM cannot be replaced. EEPROM contains program and calibration information that PCM uses to control powertrain. If PCM is replaced, ensure that NEW PCM software/calibration is correct and most recent version for vehicle. EEPROM must be programmed when new PCM is installed. Program EEPROM using latest software for that specific vehicle.
- Disconnect negative battery cable, then positive battery cable. Remove intake manifold cover. Loosen fuel filler cap to relieve tank vapor pressure. Connect Fuel Pressure Gauge (J-34730-1) to fuel pressure connection. Place fuel pressure gauge bleed hose in a container and open gauge bleed valve to relieve fuel system pressure.
- Disconnect Intake Air Temperature (IAT) sensor electrical connector. Disconnect crankcase vent pipe at air intake duct. Remove air intake duct and air cleaner housing. Disconnect transaxle vent hose and vacuum lines at Idle Speed Control (ISC) actuator bracket.
- Disconnect vacuum manifold at throttle body. Disconnect Throttle Position (TP) sensor and ISC actuator electrical connectors. Disconnect cruise control servo vacuum hoses and electrical connector. Disconnect cruise control cable at throttle body. Remove cruise control servo and bracket.
- Disconnect accelerator cable at throttle body and ISC actuator bracket. Disconnect front bank spark plug wires and position aside. Disconnect throttle body coolant hoses at throttle body and surge tank pipe. Disconnect Exhaust Gas Recirculation (EGR) pipe at throttle body spacer. Disconnect brake booster vacuum hose at intake manifold vacuum fitting. Disconnect fuel rail ground wire at rear cylinder head.
- Holding both sides of fuel line fittings twist female connector 1/4 turn in each direction in order to loosen any dirt within fitting. Blow any dirt out of fitting using compressed air. Using a Quick-Disconnect Tool (J37088), disconnect quick-connect fittings at fuel rail. Wipe off male pipe end. Inspect both ends of fitting for dirt and burrs. Clean or replace components as required.
- Remove fuel rail bracket at EGR valve. Disconnect Positive Crankcase Ventilation (PCV) hose at intake manifold. Disconnect injector harness main connector. Remove 6 bolts and 4 studs securing intake manifold, and remove intake manifold. Inspect intake manifold gaskets and replace if necessary.
- Disconnect the knock sensor wire lead. Remove the knock sensor (1).
Scheme 1
Scheme 2
| CAUTION | Ensure engine and intake manifold are cool before tightening intake manifold bolts. |
- Install knock sensor and tighten to specification. See «TORQUE SPECIFICATIONS»(ref-20799-S10724329482001010300000) .
- Install intake manifold with throttle body attached. Tighten intake manifold bolts and studs to specification by staring at center of manifold and working outward in a circular pattern. See «TORQUE SPECIFICATIONS»(ref-20799-S10724329482001010300000) . When connecting fuel line quick connect fittings apply a few drops of clean engine oil to male ends. After reconnecting fuel lines, turn ignition switch to ON position for 2 seconds, then turn ignition switch to OFF position for 10 seconds. Turn ignition switch back to ON position and check for fuel leaks. To complete installation, reverse removal procedure. Tighten starter mounting bolts to specification. See «TORQUE SPECIFICATIONS»(ref-20799-S10724329482001010300000) .