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Thread: Emission Light On After Having New Exhaust

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    Regular Member Andie-100's Avatar
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    Default Emission Light On After Having New Exhaust

    Hi guys wonder if anyone can help.

    I have a 2004 Vectra 2.0T Edition 100. Today i went to MIJ Performance and had a full stainless cat back exhaust including downpipe/flex. They drove the car off the ramp and turned it off then when i started it the emissions light stayed on. I know there is 2 sensors one before the cat after the turbo and one after the cat. Anyone have any idea which one might be causing the fault and if it is possible that it might reset itself after a while due to the one being removed and refitted to the new downpipe.

    Any advice would be greatful.

    Cheers

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    Regular Member PORKBALLS29's Avatar
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    I would say that as they probably fiddled with the post cat sensor it would be that one. Easiest way to clear the fault is to disconnect the battery for half an hour (make sure you have your radio code before you do this) then reconnect the battery and the fault will be cleared. I would perhaps call them this morning and let them know you have a fault code come up since they fitted the exhaust just in case the fault comes back after you clear it - that way if they have managed to goose your lamda sensor then they might be more inclined to replace it for you.

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