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P0440 Diagnostic Trouble Code Discussion for April 2010

General EVAP System Failure

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Trouble Ticket Help Requests for DTC P0440
Help Request Posted
1999 Subaru Legacy L 2.2L MIL Lamp on VIN: 4S3BD4354X
P0440: EVAP System Performance. ... with same p0400 evap code 4 times in 6 months. fisrt time, we just erase dtc and send customer away and mention make sure gas cap tight. second time, pressure gas cap, no leak. install test mode connector and pressure control solenoid valve no operate soun...
April 02, 2010
1998 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWRB81H1X
P0440: small evap leak. some basic testing done visual component,hoses,wiring connectors,electrical value of evap vent soleniod at canister and regulator/purge solenoid at air cleaner. the problem i have is that the regulator solenoid works but is out of electrical spec. and also doe...
April 10, 2010
1998 Pontiac Grand Prix SE 3.8L Poor Idle Quality, Surge, Stall VIN: 1G2WJ52K1W
P0440: EVAP System No Flow During Purge. ... acceleration miss. P0440 needs a new filler neck, not realted (IMO) to present problem. When engine is at operating temperature, will stall coming to a stop at 30 km/h or so. At a steady idle,engine running fine, NO MIL (codes cleared),rev engine up once o...
April 14, 2010
1996 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Surge VIN: 1GNDT13W3T
P0440: EVAP System No Flow During Purge. I am looking for some help with this fuel system. Running very rich at idle and off idle. When I first check fuel preasre it was right at 53-55 and would bleed off slowly when stopped. I cleared codes nd was only able to confirm the multi cly misfire. i suspec...
April 18, 2010