|
|
ON-BOARD DIAGNOSTIC [L3 WITH TC] 01-02–223 01-02 End Of Sie DTC P2187[L3 WITH TC] id010239812500 18 INSPECT FUEL PRESSURE (LOW-SIDE) • Connect the fuel pressure gauge between fuel pump and high pressure fuel pump. • Measure the low side fuel pressure. (See01-14-5 FUEL LINE PRESSURE • Is the low side fuel pressure within the specified? Yes Go to the next step. No Inspect for following: • Fuel line restriction • Fuel filter clogging If okay replace the fuel pump. Then go to the next step. 19 VERIFY TROUBLESHOOTING OF DTC P2178 • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. • Perform the PCM Adaptive Memory Produce Drive Mode. • Is the PENDING CODE for this DTC present? Yes Replace the PCM, then go to the next step. No Go to the next step. 20 VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See01-14-4 AFTER REPAIR • Are any DTCs present? Yes Go to the applicable DTC inspection. No Troubleshooting completed. STEP INSPECTION ACTION DTC P2187 Fuel system too lean at idle DETECTION CONDITION • PCM monitors the short term fuel trim (SHRTFT) and long term fuel trim (LONGFT) during closed loop fuel control at idle. If the LONGFT and the sum total of these fuel trims exceed the preprogrammed criteria, the Diagnostic support note • This is a continuous monitor. (Fuel system) • MIL illuminates if the PCM detects the above malfunctioning condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. • PENDING CODE is available if the PCM detects the above malfunction conditions during the first drive cycle. • FREEZE FRAME DATA is available. • DTCs are stored in the PCM memory. POSSIBLE CAUSE • Misfire • Front HO2S deterioration • Front HO2S heater malfunction • MAF sensor malfunction • Pressure regulator malfunction • Fuel pressure sensor malfunction • Relief valve (built-in fuel delivery pipe) malfunction • Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction • High pressure fuel pump malfunction • Fuel pump malfunction • Fuel filter clogged or restricted • Fuel leakage on fuel line from fuel delivery pipe and fuel pump • Exhaust system leakage • Purge solenoid valve malfunction • Purge solenoid hoses improper connection • Air suction in intake-air system • Insufficient engine compression • Variable valve timing control system improper operation • PCM malfunction 1871-1U-06B(01-02).fm 223 ページ 2006年3月15日 水曜日 午前10時32分 |