Quote:
Originally Posted by BoxsterInTheSun
This is really helpful actually. I had cleaned the MAF sensor a while back, suspecting it might be that, didn't make any difference though. I'll take a look at the O2 sensors next, I hadn't considered those as possible culprits. 
Thanks again! |
Like I stated I am making very very broad guesses as I don't have any further info on your car.
One thing to try is disconnect the MAF sensor and go for a drive ...... see if there is any difference.
When you disconnect the MAF sensor.... the DME will revert to a default fueling MAP.
02 sensors that are starting to "age out" can be tricky to diagnose that is why I stated you need the proper test equipment and test knowledge.
Bosch: (They were the first to adapt the 02 sensor to automotive use)
States that an 02 sensors life is 100000 one hundred thousand miles.
So they are aging out or slowing down at that point.
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