My Worst Nightmare.. Another CEL Post- Help? Brisbane?

[Oldhead]

Edwin ,dont be too concerned . Typical for gen 2 with sensitive ECU. Post your CEL code so as we may assist. Bet london to a brick code is (P2096).
Heaps of Gen 2 have had a Cel usually after exhaust mod , and many report similar conditions (IE after heaps of KLMs ) happened to me as well .
We may be able to diagnose once cel code is established.

[KFuNk]

Sorry man not in brissy this weekend. Hope you sort it!


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I am here: http://maps.google.com/maps?ll=-27.842507,153.327228

[3MPSPWR]

Thanks to the guys that offered to help!! Much appreciated!! Must keep you on speed dial incase it comes back!! So who wants an fantail for guessing the correct code? I ended up taking the car into my mates workplace cause i was originally scheduled for fitting of some new wheels.. Anyway the owner scanned it and it was the P0421 code... Surprise surprise... So hes just cleared it for now, but he reckons it might come back? I know a few peps have gotten this code but this is not the code that throws ur car into trouble right? Cause i think theres 2 O2 sensor codes?

[Reedy]

a P0421 code is absolutely not a problem, in fact it's almost expected if you have an aftermarket CAT. You've cleared it for now, see what happens over the next few weeks.

I got a P0421 code a while ago and didn't clear it and give it a second run so I never got a chance to see if it was just a once off CEL or not. I booked the car in immediately when in hindsight I should have cleared it and given it a second chance.

The bad thing is the fix for the P0421 code (O2 sensor extension) in itself causes a different P2096 code by drawing the sensor out of the main flow of the exhaust. Which I then needed a software fix applied to get it removed (basically just disabled the O2 sensor monitoring lol), which is only an option if you have an ECUTEK tune. Either way, both codes are completely harmless to the way the car runs. They are just annoying as hell.

Don't worry one bit about those codes, the big problem with running with a CEL permanently on tho is that it can mask other errors.