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P 0452 DTC EVAP Low Sensor Error 2007 GP

Y

yormets

New member
Even when I clear the error it comes back. It's indicating a leak somewhere. I tried a new gas cap. That didn't work. It comes on within a minute of clearing the error. What should I look for next? A broken hose or something? Any one get this error before?
 


Broken wire or bad pressure sensor. Doesn't have anything to do with a leak.

Code is set when the FTP sensor voltage is less than .1volts for more than 5seconds.

Gray/blk is 5volt reference. Pin 53 on pcm F on tank plug.

Dr green is fuel tank pressure signal pin 26 on pcm G on tank plug.

Blk is low reference. (ground) pin 8 on pcm H on tank plug

Tank plug can be accessed under the cover in the trunk. Check for continuity and less than 5ohms from a to b on each wire. I'd put money on the sensor. But checking the wiring isn't too bad.

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