Thread: engine timing

is your engine timing suppose to change over the rev range? because my is dead on idle, but it goes to 37 degrees once the car is over 3k. all of this was check with datascan and i have a log file if anyone wants to check it

Yes, it is supposed to change depending on many things, mainly engine rpm and MAF reading.

Ben is correct -- and the timing will even jump around at idle unless the ECU is in "set base idle/timing" mode.