Rough Idle, Stalling, need help
Thread Starter
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Do you know anyone who can scan your engine for you? Unless this is done, you may be buying new parts to replace good parts. I had an acceleration problem on my 89 and it turned out to be the O2 sensor and there were not any codes stored in the ECM. The O2 sensor was frozen on a certain mv value and was not jumping up/down as it was supposed to do. A scan tool quickly found this problem. Another suggestion would be to use some Chevron Techtron fuel injector cleaner and see if you have clogged injectors.
Drifting
Joined: Nov 2005
Posts: 1,324
Likes: 5
From: Charlotte NC
Do you know anyone who can scan your engine for you? Unless this is done, you may be buying new parts to replace good parts. I had an acceleration problem on my 89 and it turned out to be the O2 sensor and there were not any codes stored in the ECM. The O2 sensor was frozen on a certain mv value and was not jumping up/down as it was supposed to do. A scan tool quickly found this problem. Another suggestion would be to use some Chevron Techtron fuel injector cleaner and see if you have clogged injectors.
Drifting
Joined: Nov 2005
Posts: 1,361
Likes: 0
From: Downriver Mi.
Heres an update, today I replaced the fuel filter because whether or not its the problem it most likely should be replaced anyway. However it did not help my problem. I didnt see any kinks or defects in the fuel lines at all and of course no leaks. I checked for codes again, still nothing.
As far as being out of gas, I can hold down the gas pedal and it will continue to run although not very smooth like it should. When I let off it will stall out in a few seconds. I'm sure my gauge isnt 100% accurate but I know I have gas.
The cat isnt clogged up, I just replaced it last year. And yes it happens hot, cold, whenever I just start the car. Well I cant really think of anything else to check, so any ideas?
As far as being out of gas, I can hold down the gas pedal and it will continue to run although not very smooth like it should. When I let off it will stall out in a few seconds. I'm sure my gauge isnt 100% accurate but I know I have gas.
The cat isnt clogged up, I just replaced it last year. And yes it happens hot, cold, whenever I just start the car. Well I cant really think of anything else to check, so any ideas?
Drifting
Joined: Nov 2005
Posts: 1,361
Likes: 0
From: Downriver Mi.
Heres an update, today I replaced the fuel filter because whether or not its the problem it most likely should be replaced anyway. However it did not help my problem. I didnt see any kinks or defects in the fuel lines at all and of course no leaks. I checked for codes again, still nothing.
As far as being out of gas, I can hold down the gas pedal and it will continue to run although not very smooth like it should. When I let off it will stall out in a few seconds. I'm sure my gauge isnt 100% accurate but I know I have gas.
The cat isnt clogged up, I just replaced it last year. And yes it happens hot, cold, whenever I just start the car. Well I cant really think of anything else to check, so any ideas?
As far as being out of gas, I can hold down the gas pedal and it will continue to run although not very smooth like it should. When I let off it will stall out in a few seconds. I'm sure my gauge isnt 100% accurate but I know I have gas.
The cat isnt clogged up, I just replaced it last year. And yes it happens hot, cold, whenever I just start the car. Well I cant really think of anything else to check, so any ideas?
Thread Starter
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Yes I did put a new sock on the pump. As far as the timing goes, I turned the distributor (with the bypass line disconnected) until I found a spot where it ran the best. Had to keep hitting the gas every now and then to get it right. So no its probably not 100% dead on, but it shouldnt be acting the way it is.
I've noticed that when I give it more gas, say up to 2000rpm it sounds pretty rough, I'm starting to wonder if its a spark problem?
I've noticed that when I give it more gas, say up to 2000rpm it sounds pretty rough, I'm starting to wonder if its a spark problem?
Last edited by Demonic85; Jun 2, 2007 at 11:07 AM.
