I'm sure this is not a new topic, but any help would be great. My 2.0 16v is acting up a bit, recently I got a ram air filter and supersprint exhaust and every thing was running great. I the last couple of days I have noticed the injector light come on and a few time while driving along...no power..just dies and then picks up again. I am a bit concerned as my last alfa 155 2.0 8v did the same thing. It almost feels like fuel starvation. any suggestions
Sounds like Lambda (Oxygen sensor), these are the symptoms I had (four times!!).
-driving along sudden hesitation, no power, picks up again.
-problems accelerating away from junctions and roundabouts.......SCARY!! Needs lots of revs.
But as Jacques says, there may be other things at fault, lotsa sensors! I'm told (by Alfa garage)the throttle position sensor and air meter can give similiar problems, mine were always down to the Oxygen Sensor.
I just had the Lambda changed a few weeks ago..emmisson problems, so I do'nt think that is the problem. The latest thing now is when starting in the morning (cold start) the revs shot up to 3000 and wave beteew 3000 and 3500 for a few minutes (feels like hours) that came back to normal.