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P0442 Diagnostic Trouble Code Discussion for November 2011

EVAP System Small Leak Detected

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Trouble Ticket Help Requests for DTC P0442
Help Request Posted
1998 Ford E-150 Econoline Club Wagon Chateau 4.6L monitor reset VIN: 1FMRE1168W
P0442: Small evap leak. I diagnose code P0442 - small evap leak. I replaced the vent valve because it had a small leak and when i blew through it some chunkies came out. NO other leaks were fopund. I cleared the codes and now i cannot get the evap monitor to reset. All other monitors...
November 04, 2011
2002 Nissan Altima SE 3.5L Surge, MIL Lamp on VIN: 1N4BL11D22
P0442: EVAP System Small Leak Detected (Negative Pressure). This car will surge at 2500 RPM. Smoked system and no vacuum leaks found. Tested evap purge valve and ok. Replaced MAF and problem gone. Customer returned next day for same issue. Got OEM Nissan brand new MAF. Customer back again for same problem. I do not bel...
November 14, 2011