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Car stalling(?) HELP

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Old Jul 6, 2013 | 08:40 AM
  #1  
JoshGuynes's Avatar
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From: Elkhart, IN
Car: 1986 Camaro Iroc-Z
Engine: 383 coming soon
Transmission: Pro-Built/Jasper 4L60
Axle/Gears: 3.73
Car stalling(?) HELP

So I'll start the car up and it starts up just fine, but if I let it sit for a couple minutes the Ron's will drop and the car will start to sputter and sometimes it will die but sometimes it catches itself and the rpm's jump back up to 1k and stay there for awhile then drop back down to normal. AND THEN sometimes when I'm driving, the SES light will flash and the car will sputter in the middle of driving, again, sometimes it catches itself and sometimes it just flat out dies and I have to pull over and restart it which it does just fine. I don't get it?
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Old Jul 7, 2013 | 09:52 AM
  #2  
Keoman's Avatar
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From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: Car stalling(?) HELP

I had those exact same problems. I suggest getting a new ECM.
I chased those symptoms for what seemed like months and in the end, the culprit was the ECM. There is so much testing and proceedure for diagnosing a bad ECM, its not worth it. Especially if your unfamiliar with datalogging.
https://www.thirdgen.org/forums/dfi-...me-what-2.html
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Old Jul 7, 2013 | 02:46 PM
  #3  
JoshGuynes's Avatar
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From: Elkhart, IN
Car: 1986 Camaro Iroc-Z
Engine: 383 coming soon
Transmission: Pro-Built/Jasper 4L60
Axle/Gears: 3.73
Re: Car stalling(?) HELP

Originally Posted by Keoman
I had those exact same problems. I suggest getting a new ECM.
I chased those symptoms for what seemed like months and in the end, the culprit was the ECM. There is so much testing and proceedure for diagnosing a bad ECM, its not worth it. Especially if your unfamiliar with datalogging.
https://www.thirdgen.org/forums/dfi-...me-what-2.html
Even if it doesn't happen all the time? It's really an intermittent problem, I drove to work and back today without it acting up once.
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Old Jul 7, 2013 | 02:49 PM
  #4  
Keoman's Avatar
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From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: Car stalling(?) HELP

I can remember driving 10-20 minutes at a time without it doing anything and all of the sudden it would go crazy.

What engine, trans do you have?
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Old Jul 7, 2013 | 05:00 PM
  #5  
JoshGuynes's Avatar
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Joined: Jun 2011
Posts: 24
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From: Elkhart, IN
Car: 1986 Camaro Iroc-Z
Engine: 383 coming soon
Transmission: Pro-Built/Jasper 4L60
Axle/Gears: 3.73
Re: Car stalling(?) HELP

Originally Posted by Keoman
I can remember driving 10-20 minutes at a time without it doing anything and all of the sudden it would go crazy.

What engine, trans do you have?
Yeah that's what mine does, sometimes it does it after it's just been idling for a minute or like a minute after I start driving. But yeah then some days it runs just fine.
It's the 305 TPI and 700R4.
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Old Jul 29, 2013 | 11:23 PM
  #6  
Keoman's Avatar
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15 Year Member
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Joined: Nov 2007
Posts: 845
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From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: Car stalling(?) HELP

Any Luck?
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Old Jul 30, 2013 | 12:13 AM
  #7  
Javier87z28's Avatar
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From: San Antonio, Texas
Car: 1987 Camaro Z28, 1989 TTA #922
Engine: lb9, 3.8L turbo
Transmission: 700r4, 2004R
Re: Car stalling(?) HELP

Had the same issue turned out to be a wiring issue with the maf sensor and icm
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Old Jul 30, 2013 | 07:59 AM
  #8  
JoshGuynes's Avatar
Thread Starter
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Joined: Jun 2011
Posts: 24
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From: Elkhart, IN
Car: 1986 Camaro Iroc-Z
Engine: 383 coming soon
Transmission: Pro-Built/Jasper 4L60
Axle/Gears: 3.73
Re: Car stalling(?) HELP

Originally Posted by Keoman
Any Luck?
Yeah, I just ended up replacing the ECM, cost me like $80 but she runs a lot smoother than she did so I can't complain
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