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Discussion Starter #1
i went to the local garage and they gave me this


VEHICLE ALFA ROMEO-166-2002


FAULT CODES

FUEL/IGNITION (AR 36301-MOTRONIC ME 7.3.1- MT/AT-TWIN SPARK)

DTC DESCRIPTION

P1173 -MIXTURE 1 STRENGHT (ADDITIVE)
PRESENT

P1176 -MIXTURE 2 STRENGHT (ADDITIVE)
PRESENT


THEY LOOKED ON THEIR COMPUTER & COULDN'T FIND THESE CODES,CAN ANYONE HELP
THE MECHANIC SAID ADDITIVES USUALLY COME UP FOR DIESAL CARS & MINE IS PETROL ?????
 

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Spend a little time on the forums search feature and the homemade 166 manual thread to get yourself up to speed.
 

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can you tell me what is the MAF
MAF is the Mass Air Flow meter, the device which measures the quantity of air intake.
Upon the data sent by the MAF sensor, the ECU determines several parameters such as fuel quantity (injection time).
The p1173 error code is mostly due to an abnormal fuel mixture (too rich or too poor). This may happen because of wrong airflow measurement or a malfunction of the lambda sensor.
 

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Don't forget to look for simple problems like split hoses between the MAF and the throttle as well. If there is an air leak there, that will mess things up a treat.
 
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