Rough on/off throttle response

dimanche 15 juin 2014

I have rough response when going from fuel cut off and to where engine starts pulling. Or, if you like, from 0% to slight throttle. Its, not surprising, worst in 1&2nd gear, there it can start oscillating/jerking at low RPM.



If its of interest, it's also feels like very little power extra from 50->100% throttle, but I understand this is not unusual. Power is good though(225Hk estimated at flywheel, no CAT. For what its worth:eyetwitch). 60k miles.



I have

- Changed spark plugs

- Cleaned MAF. Was covered in oil, and has most likely been for a long time before I checked

- replaced MAF screen(original was torn)

- tried different maps(original and MM, 1st and 2nd tune)



Any ideas what to do next?




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