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eml light
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pazza

Posted: Wed Apr 25, 2012 4:31 pm

Joined: Apr 14, 2012
Posts: 28
Trade Rating: 0
Location: west mids

P0170 fault code fuel trim malfunction ........ could this be the front lambda sensor plese??????

Deckchair5

Posted: Thu Apr 26, 2012 12:46 am

Joined: Aug 01, 2011
Posts: 390
Trade Rating: 0
Location: Bath UK

It might be lots of things, the car is warning you that it is having to trim the fuel injected to an unacceptable level so you need to find out what is causing that. I'd reset the code and see if it happens again. If you can, monitor your lambda sensor whilst engine running A simple misfire can also cause fuel trims to want to go to max to compensate so check your plugs

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