Zitat:
Zitat von mboonman
Hi,
First off all is it a manual or automatic gearbox?
When you let go the throttle above a certain speed, the injection times of fuel are determined by a fixed table. Under a certain speed the O2 lamda sensors in combination with the airflow sensor. take over again.
It could be that the lambda sensors or airflow sensor are too far gone and that there is a jump in injection times when the engine switches from the table to the lambda control.
This could result in a ramp up of the revs.
You can check the lambda sensors with a oscilloscope.
Regards Maurice
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Ahh thank you very much that makes sense,its an Automatic.
i have another X6 so i will swap over the mass air flow sensor and see if that makes a difference if not you say the lambda sensor next. i know about the MAS sensor but i dont know where the lambda sensor is,could you tell me where it is and is it easy to replace? thanks for the help
