156 2.0 TS - EOBD light due to mixture, any ideas?
hi people, EOBD light is on the car, and after clearing the faults, using fiatscan they pop up again after a while ( maybe a month). theres 2 faults that appear together, these are:
p1177- mixture correction (multipl.)1
fiat scan states the ecu has run out of range in adapting the mixture in reference to the 02 sensor signal (multiplicative adaptation) and/ or in reference to the engine running conditions (additive adaptation).possible causes:
engine temperature sensor/circuit defective, but the signal in realistic range.
fule pressure incorrect.
p1178 - mixture 2 strength (multiplicative)
fiatscan states the reason for this fault is that the ecu has received very high signal from this sensor.
can any1 help what the problem could be, and how i can fix it? i think (not sure) but the mpg seems quite low, so could it be related? thanx