Stange Miss (2000-2500 RPM)

slader99 · 05-31-2008, 09:14 PM

Car is running great, idles smoothly at 650RPM and pulls hard to redline. The timing is set correctly, but it has a strange miss at the 2000-2500 rpm range. Its a stock, manual 7mgte.

It is quite often repetable and occurs when the engine has been running from 2-7 minutes (seems to happen during warm up but not when engine is cold or hot).

It also only happens under light throttle and low boost. If the acceleartor is mashed to the floor, there is no hesitation or miss during that rpm range regardless of engine temp.

It seems to be more of a backfire or mis-fire rather as there is a noticible lurch and momentary drop of RPM. The engine is throwing no codes, and other than this little issue runs great. Any ideas?

05-31-2008, 09:14 PM	#1
slader99 Stock Join Date: Apr 2008 Location: canada Posts: 26	Stange Miss (2000-2500 RPM) Car is running great, idles smoothly at 650RPM and pulls hard to redline. The timing is set correctly, but it has a strange miss at the 2000-2500 rpm range. Its a stock, manual 7mgte. It is quite often repetable and occurs when the engine has been running from 2-7 minutes (seems to happen during warm up but not when engine is cold or hot). It also only happens under light throttle and low boost. If the acceleartor is mashed to the floor, there is no hesitation or miss during that rpm range regardless of engine temp. It seems to be more of a backfire or mis-fire rather as there is a noticible lurch and momentary drop of RPM. The engine is throwing no codes, and other than this little issue runs great. Any ideas?