View Single Post
Old 07-11-2005, 05:16 PM   #1
coupe
Super Moderator
 
coupe's Avatar
 
Join Date: Dec 2004
Posts: 6,313
Some mis-firing input please....

Car is a '93 GT. It has heads, cam, intake, etc...5-speed car.


It starts, runs, idles fine and revs fine at a stop. Nothing wrong.

Start to take off and there's a bad bobble/misfiring under part-throttle like spark issues. Give it more gas (ie: roll into it hard) and it is not noticable...

Or, let it accelerate through the bobble to about 2400 RPM and it clears up. Otherwise no problems.

I've set timing, replaced TPS, tried another MAF, sensor and complete meter (19# injectors), and checked cap/rotor/wires, etc...). I also disconnected the MSD and ran stock ignition...no change. Still a bobble/sputter up to 2400...unless you're about 1/2 throttle or better.

My next step will be try another computer and/or distributor.

Any other suggestions?
__________________
" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein
coupe is offline   Reply With Quote