Quote:
Originally Posted by BoxsterInTheSun
I have a slight hesitation when first accelerating after a gear change, it lasts about 1 second, then proceeds as normal. The interesting thing is that if I disconnect the battery overnight, the hesitation is gone and the car runs perfectly for a while ( maybe 200 miles? ), before the hesitation eventually comes back.
There are no codes and no check engine light before or after.
Any ideas would be gratefully recieved, it's kind of driving me nuts.  |
When you disconnect the battery the DME resets it's fueling maps to the default settings.
That's why the hesitation is gone for a while.
I am just making a.....very broad guess here..... but it could be the MAF sensor or your O2 sensor's
both sensors "age" and their signal slows down so the response from the DME to the fuel injectors will have a very slight lag.
It will not throw a code until "signal slow down" from the sensor exceeds a set limit in the DME.
So you need someone with the proper test equipment to test the sensors.
and the knowledge to run and interpret the tests correctly.
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