Motor Control System Failure driving me nuts!
Since I value this forum very much, I thought I will post my problem.
Car in question: 2001 Alfa Romeo 147 1.6 Twin Spark - 220 000KMs
I do 160KM per day, and I started to get the Motor Control System Failure 2 weeks ago. Sometimes I will get it early in the morning, sometimes I will get it 5 minutes before I get to work.
If I drive, I can feel the pedal under my foot 'changing', probably a loss of power for a split second, thereafter greeted by die MCSF error. I can feel the car is then sluggish, and fuel consumption is very heavy. When I switch off the car, back on again, everything appears to be normal, until I get the error again when normal driving - once again this can vary. Sometimes, when I get the MCSF, there is no response from my petrol pedal for about 10 seconds (the engine does not cut out) and then she comes alive again.
What I have done so far:
I have replaced the battery with a new strong one. An Alfa specialist also made sure that everything is nice and tight (cables, earth contacts etc). He also checked the potentiometer, found some problems and corrected them. I thought everything was sorted. But I was wrong...
So, I am going to take the car back to him, but I thought I would like to get some advice. MAF? Spark plugs? (Was replaced 20 000KM ago). Lamda sensors? ECU perhaps? Coil pack or plug leads?
I need to find the problem relative quickly, since I am going on a 3 000KM trip, and I don't want a crippled Alfa.
Thank you in advance.