chad67chev
TYF Newbie
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- Oct 1, 2012
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my 1999 chevy tahoe has code P0452 . EVAP ctrl pressure sensor low input.
What does that mean? how to fix? thank u
What does that mean? how to fix? thank u
engine code problem.
- Thread starter chad67chev
- Start date
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SunlitComet
OBS Jedi-Do Good
the pcm sees an issue with the fuel tank pressure reading. test is needed to determine if it is wiring or the sensor on top of tank is at fault. with the right scanner you would look at pressure reading while moving the specific harness from front to back. if it changes then you found at what point in harness wire is damaged. if no changes then pressure sensor is at fault.
