Check to make sure that your air box cover is either not broken (to much air to the engine) or loose
First off have the ODBII engine codes read out. It will probably tell you that one or more of the following has a code:
1. O2 sensor Bank 1
2. Mass air flow sensor problem
3. Throttle position sensor problem.
4. EGR Valve problem
The OBDII codes will tell you which one it is.
My bet is either 2 or 3 above but would have to read codes first.
Thanks for using FixYa.
Kelly
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