Question about 1999 Pontiac Sunfire
Engine light comes on code p0440
P0440 - Evaporative Emission (EVAP) System, this code is most often caused by leaving the gas cap loose, or off.
Posted on Sep 21, 2008
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Posted on Jan 02, 2017
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May 18, 2015 | 1999 Pontiac Sunfire
Aug 16, 2012 | 2002 Pontiac Sunfire
5.Connect the new EVAP vent solenoid harness (3), P/N 22687059, to the EVAP vent solenoid (2), route the harness above the rear ABS harness (4) and connect the EVAP vent solenoid harness (3) to connector C313 (1).
6.Lower the vehicle.
7.Clear the DTC's with the Tech 2 scan tool.
If all of the wires are good you will want to check for any leaks in the evap system.
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