Hey guys, i got a 87 gn, rebuilt engine, .020 over,new crank,rods,forged pistons,balanced,postons 107T cam 254ex,202in,.430lift,ported heads,intake,poston headers,crossover,3 inch downpipe,and hooker exhaust along with a cheetah turbo,k&n open filter,hot wired fuel pump,adj pressure reg. and wastegate. but the real problem is after i snap the throttle open and let off of it... the car stall completely out and i have to put it in neutral when driving and restart it. it's becoming to be a pain. Also it has a real rough idle. i have alot of money into this car and the little things like this are ticking me off, not to mention making those 347 mustangs look better. HELP GUYS!!!
I have the same problem. Seems when I get on it real hard, then stop real hard, it will stall. Anyone have any ideas? Sorry, I do not own any scan tools. Mods are on my web page. Please email me direct if you are a digester, I am a msg board user only. TIA!
Shawn
mailto:jsta6@bellsouth.net
87GN - "REAL" daily driver
http://personal.mia.bellsouth.net/~shawnco
six year old web site...no pictures of my car yet...
When I had the problem, I removed the IAC, cleaned it and it's housing. Replaced and re-adjusted the IAC.
Idles like a champ. Full throttle stomps, let off the throttle and the engine does not die.
Melvin
I HAD THE SAME PROB. I REPLACED MY IAC,NEVER STALLED AGAIN.
In addition to removal and cleaning, I would suggest a TPS adjustment. You can do this one with an (accurate) voltmeter and do not need a scan tool. See http://www.gnttype.org/techarea/faq/IACreset.html
I will try it tonight. Thanks all. This site is so useful. It's like Christmas 365 days a year...now if I could only convince my wife that it was a good idea for me to drive a muscle car to work everyday instead of a $2000 rice burning beater...
Also, (I had this problem after my rebuild) Make sure the cam sensor is adjusted right....If it isn't all sorts of nice things go wrong!