Hey guys i recently did my 100,000 service and cleaned my throttle body at the same time. Since then my idle seems to go anywhere from 735-775rpm this doesn't bother me to much however at idle my timing is all over the place but only when the car has warmed up and has been revved a few times(figures are from an ecu consult display) Base timing was checked at completion of the 100,000 service and was 15 degrees. If i hold the accelerator anywhere else in the rev range the timing stays constant. It also stays constant when it is cold at idle and adjusts as the car starts to warm up. But as soon as it gets to about 72 degrees water temp when i give it a quick rev it doesn't return to 15 degrees at idle, it will read anywhere from 0-15 degrees and is constantly fluctuating.
Has anyone ever had this problem or knows what the problem might be?
The car is a 1996 GTS-T