CEL error , HELP! :(

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06-25-2003, 08:12 PM

Big Donk

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CEL error , HELP! :(

Let me just give you the info. First I put on the blitz cat back exhaust. Second I put on the AEM cai. Everything was ok for like 2 weeks. Then I put on the cat-less perrin down pipe. I didn’t want to mess with moving the o2 sensor so I took it to easy street and they put it on for me. I drove it off the lot with everything running good. Everything stayed good for like 2 more weeks. Then one day the CEl just turned on. Acceleration and boost feel fine. I was just wondering if anyone had something like this happen. I don’t know if I should take it to the dealer or to easystreet. Im guessing its just something with the o2 senser but im not expert. What can I do to check other than take it back to the dealer ??? if that’s my last resort are they going to ***** at me for moding the car. I don’t think it would be coverd under warranty.

06-25-2003, 09:29 PM

mario

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Join Date: Dec 2002

Location: Flying on the H1 w/ 75 psi of compression on all 4 cyl

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Car Info: PnP VF30 w/ STi injectors Perrin intake walbro fuel pump w/ a TXS TBE

big donk just post on your local forums and ask if anyone has an OBD-II scanner to pull some codes for the cel, if that doesn't work bye one at a local autoparts store pretty expensive though. but im sure someone in your area has one. then when you get the code just ask here what it is. No need to go to the dealer ship and worry. good luck

06-26-2003, 12:37 AM

Big Donk

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thanks ill try

06-26-2003, 04:50 AM

Mulder

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Join Date: Nov 2002

Location: NYC

Posts: 1,646

Car Info: 02 WRX WRB

You should definitely get it scanned, but it is most likely a P0420 catalyst inefficiency code caused by your catless downpipe. This code will come back after it is cleared, and the only way to get rid of it is to install one of the CEL "fixes" or "eliminators" that are sold for this purpose. If your car is an '02 or '03 the eliminators work fine, however if you have an '04 there will be a problem as they don't work on the '04s.