P0440 Diagnostic Trouble Code Discussion for August 2011
General EVAP System Failure
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| Help Request | Posted | |
| 2001 Saturn SL2 1.9L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy P0440: EVAP System Performance. ... claims to get 19 mpg. Car is running very rough. LTFT"-9" STFT"10" it idles with a miss fire. Decided to install new igntion wires, the old ones were in pretty tough shape. After we started it back up it was running even worse, miss firing ... |
August 10, 2011 | |
| 2001 Saturn SL2 1.9L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, Poor Fuel Economy P0440: EVAP System Performance. ... claims to get 19 mpg. Car is running very rough. LTFT"-9" STFT"10" it idles with a miss fire. Decided to install new igntion wires, the old ones were in pretty tough shape. After we started it back up it was running even worse, miss firing ... |
August 12, 2011 | |
| 1999 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54Y3X P0440: EVAP System Malfunction. Vehicle has energized purge and vent solenoid at all times. Power supply checks fine. ECM supplying ground to both solenoids when key is on. Grounds go away when ECU connector containing wires to solenoids is disconnected. Sent to GM had new ECM installed and ... |
August 30, 2011 |
