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Originally Posted by jeff740
Hi,
My check engine light decided that it would make an appearance this morning so I hooked up a code reader and got the following DTC:
"P0453- Evap System Pressure Sensor: Signal too high."
I was hoping someone could help me make some sense of what this could be pointing at and how to remedy the situation. Im not sure but I thought it might have something to do with the fuel system?? Just a bit of background...I filled the car up with fuel the other night and drove a few miles home and parked the car. 2 or 3 days have gone by with the car sitting in the garage when I decided that I would take it out for a spin today and then noticed that the light had come on. I did remove the gas cap and then replaced it but the light was still on after I restarted the car....Im not too sure if it would have reset itself after doing that if that were actually the problem or not.
Anyhow, I did manage to grab the code and reset the CEL but in the mean time I would like to try and figure out the situation and hope that light doesnt make an encore appearance.
Jeff
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Hi,
My guess is what you already tried - the Gas Cap. You fail to mention your MY, but the original part - PN# 996.201.241.00 has been superceded by PN# 996.201.241.01 which has a better seal. Check your Cap and the part # is on it. If you still have the old part, treat yourself to the new one, they're only $15. If you have the upgraded part already, it could simply be that the Seal has failed - they do wear out.
Keep an eye out for another CEL with the same fault, I bet if it returns, it will also be after a fill-up. BTW, be sure not to try and get every drop of fuel in there that you can. The new systems will mess up if you do. Just fill til the pump stops, or you'll push fuel into the Evap Cannister. Hope this helps...
Happy Motoring!... Jim'99