3 P codes for 18 months
So MCSF been on for 1.5 years now and whenever I read codes its always P1172/1175/1176. The car has always run OK, but did a more in depth analysis this morning with netscan.
Showed long term trim on bank 1 & 2 where rich ie max 25%.
Saw idle air flow go from cold 9.5 g/sec to 3.5 g/sec after ~ 5 mins. Seems a bit low ?
Coolant and air temps all seem to read correct
Garage reckoned a mis fire when I told them and last had my cam belt done last Nov, ie could be coill or plug
These code when I look up - same people say rich/fuel type codes, some say cam/rotor , its all very confusing.
Car runs OK, sometimes flashing MSCF light for a short time when reverse out of garge and leave idle when I get out to close garage, again too rich I guess, always stops flashing when I drive away. Otherwsie its been on forever. Clear codes and on 3rd journey, on it goes again about 3 miles into journey
MPG is about 24.3 for tank of m'way cruising, average on computer seems OK on motorway but when cold reads really low
Temp needle moves from 80-90 when running, used to park on 90 but now seems to move through a wider grove as the therm opens and closes
Puzzled, any clues to this confusing tale
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