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clearing codes 200 1991

posted by UFgator on Tue Jan 20 09:23 CST 2009
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last visit: Mon Aug 31 17:09 CST 2009

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A ha! That would explain why when we reset the codes using the OBD port, the car would still idle okay (lumpy, but not stalling) at 1500rpm with no CEL for an hour or so before tripping the CEL again. If we pulled the battery and reset everything, the car would stall until it was warmed up and driven around for awhile, so it had a chance to adapt. So, the idle it has now is based on the adaptation of this condition.

Based on the things Laine said, this is starting to really line up with a bad AMM, but I don't want to jump to conclusions. I will still check out the O2 sensor readings, the AMM voltage while off, and see if I can dig into the cold start injector.

It would be wonderful if I knew someone local in South Florida that wouldn't mind letting me test a good AMM to see if that cures the problem. That would take 5 minutes and completely rule out one of the biggest culprits. I'll keep digging.

Thanks for everyone's help, I've really learned a lot about this Volvo's ECU today.

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91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
posted by UFgator on Tue Jan 20 02:44 CST 2009 >

91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
posted by Ryan_R subscriber on Tue Jan 20 03:43 CST 2009 > V
- 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
  posted by UFgator on Tue Jan 20 04:01 CST 2009 > V
  - 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
    posted by Ryan_R subscriber on Tue Jan 20 05:58 CST 2009 > V
    - 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
      posted by UFgator on Tue Jan 20 06:14 CST 2009 > V
      - 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
        posted by Laine subscriber on Tue Jan 20 08:18 CST 2009 > V
      - clearing codes [200][1991]
        posted by Art Benstein subscriber on Tue Jan 20 09:11 CST 2009 > V
        
        clearing codes [200][1991]
        posted by UFgator on Tue Jan 20 09:23 CST 2009 > V

91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
posted by runwld2 subscriber on Tue Jan 20 03:58 CST 2009 > V
- 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
  posted by UFgator on Tue Jan 20 04:38 CST 2009 > V

91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
posted by rhaire on Tue Jan 20 04:07 CST 2009 > V
- 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
  posted by UFgator on Tue Jan 20 05:39 CST 2009 > V
  - 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
    posted by Laine subscriber on Tue Jan 20 08:08 CST 2009 > V

91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
posted by Art Benstein subscriber on Tue Jan 20 05:18 CST 2009 > V
- 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
  posted by UFgator on Tue Jan 20 05:50 CST 2009 > V
  - 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
    posted by Art Benstein subscriber on Tue Jan 20 08:05 CST 2009 > V
    - 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
      posted by 83GLT subscriber on Wed May 4 09:35 CST 2011 > V
  - LH2.4 ECUs [200][1991]
    posted by Art Benstein subscriber on Tue Jan 20 08:43 CST 2009 > V
    - LH2.4 ECUs [200][1991]
      posted by UFgator on Tue Jan 20 09:15 CST 2009 > V
      - LH2.4 ECUs [200][1991]
        posted by Art Benstein subscriber on Tue Jan 20 09:59 CST 2009 > V
        
        LH2.4 ECUs [200][1991]
        posted by UFgator on Wed Jan 21 04:02 CST 2009 > V
        
        italics [200][1991]
        posted by Art Benstein subscriber on Wed Jan 21 04:50 CST 2009 > V

Another Opinion on 1-1-3 Code [200]
posted by lucid subscriber on Tue Jan 20 06:24 CST 2009 > V
- Another Opinion on 1-1-3 Code [200]
  posted by UFgator on Tue Jan 20 06:31 CST 2009 > V
  - Another Opinion on 1-1-3 Code [200]
    posted by lucid subscriber on Tue Jan 20 08:11 CST 2009 > V
- Another Opinion on 1-1-3 Code [200]
  posted by Art Benstein subscriber on Tue Jan 20 07:26 CST 2009 > V

91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
posted by rhaire on Wed May 4 17:59 CST 2011 > V
- 91 240 - Won't idle, CEL 1-1-3, then fast idle [200]
  posted by Art Benstein subscriber on Wed May 4 20:36 CST 2011 > V

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clearing codes 200 1991