Re: Fiat Stilo, 51 reg, 1600 16v failed MOT emissions on CO Archived Message
Posted by Martin Kelly on December 15, 2007, 4:37 pm, in reply to "Re: Fiat Stilo, 51 reg, 1600 16v failed MOT emissions on CO"
Hi, fuel trim live data checked with Solus and Multiscan and both agree with figures posted earlier. The front O2 sensor works well and the rear O2 sensor is now staying at around 780 to 800mV I have come across ECUtesting.com site where they give info relating to high CO figures due to faulty ECU. Could a faulty ECU be producing the odd fuel trim figures that I am seeing? Will look into this area next week. Thanks, Martin.
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