Background:


Before I cleaned the MAF and adjacent 'idle up' valve, my car idled at a perfect 650rpm while the car was stopped and in "D". In addition I didn't have any issues with the car wanting to stall out or idles dropping out while the A/C was on and car was reversing.


I checked all the lines, everything looks good. I'm basically idling about 90-100 rpms higher in drive now (roughly 730-760 rpms). Mileage is more or less the same. I used CRC MAF cleaner of course and don't know what could be causing this other than I fouled the MAF and/or idle up valve. I did the "disconnect battery" trick for an hour and even removed the EFI fuse. Both didn't do a darn thing.


Any pointers are much appreciated!


Lesson of the month: If it ain't broke, leave it be! I had no issues with idling or mpg performance, rather I just wanted to do more tinkering or preventative maintenance.