Re: FORD/FIESTA/1.4 ZETEC/2003 CAT EFFICIENCY & RUNNING LEAN ERRORS Archived Message
Posted by Tony Sefton on June 8, 2008, 8:22 pm, in reply to "Re: FORD/FIESTA/1.4 ZETEC/2003 CAT EFFICIENCY & RUNNING LEAN ERRORS"
. The Way I would see that problem is different to what I have interpreted from the Above posts. C0 6.64 = Running Rich. Lambda. 0.89 = Running Rich. Hc's 325 = running rich. 02 2.36 Possibly because the cat cannot work properly and use up the excess 02. ??? Front O2 sensor reading 0.15v Cos its duff. Rear 02 sensor reading high cos its Rich. (telling the truth ) But still possibly no use on that vehicle. ?? I would think this car needs a pair of Genuine 02 sensors fitting before any more time is spent testing. ???? Another thought. If Both 02 sensors are working correctly, How could it be rich at the Rear and Lean at the front. ?? Awaiting a Beating. Tony.
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