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P0452B Fuel Tank Pressure Sensor Low Voltage

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Old 04-25-2011, 08:20 AM
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Default P0452B Fuel Tank Pressure Sensor Low Voltage

Ok, to give a long story short.

P0452B Fuel Tank Pressure Sensor Low Voltage Code was logged.

2002 Trans Am
46k on the clock
Fuel system never touched
Has Cam, Exhaust, Lid, Catted Y.

Has been Dyno tune by Eastside Perf. in Wallingford CT but no longer in the LSx biz.

AIR pump removed 1-1/2 years ago, they tuned out the code for that.

This came on a month ago, checked and cleared last night, came back on the 2nd start up.

Searched here and Google but for my car since nothing was ever really messed with, why did this kick, how do I fix, and since I have scanable emissions, can we tune this code out???

In the internet, these post come up but no one ever really post answers so I never know how it gets resolved.

http://www.obd-codes.com/p0453 the closest active link I found. I did notice some fuel smell. Sounds like the sensor crapped out but I think that kinda stinks that I gotta pull the tank.

PCM section has not responded so I am broadening my search.
Old 04-25-2011, 08:41 AM
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Cut a hole,takes a few mins and you're in.
Old 04-25-2011, 08:54 AM
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^ get that, and I had done that with a ratty 94 z28 I used to own, this car is a bit nicer so I have no issues dropping the tank, the question is, is it just that sensor. I suspect it is but I figure to throw this out there.



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