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| 1990 bonneville will not idle http://www.pontiacbonnevilleclub.com/forum/general-chat/topic51007.html |
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| Author: | Frustrated1 [ Thu Sep 21, 2017 1:15 pm ] |
| Post subject: | 1990 bonneville will not idle |
I have replaced the icm,tps,crank sensor( hope is in right watched a lot of videos) also replaced cam sensor and wiring harness that goes to all of those. Tach does not work. Car will run at a higher rpm but will not idle. Please help anyone. |
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| Author: | J Wikoff [ Thu Sep 21, 2017 2:03 pm ] |
| Post subject: | Re: 1990 bonneville will not idle |
Try unplugging the MAF and see if the behavior changes. Are there any other symptoms, trouble codes, sounds, etc? |
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| Author: | MattStrike [ Sat Sep 23, 2017 10:06 am ] |
| Post subject: | Re: 1990 bonneville will not idle |
A few other things that could cause poor idle are EGR stuck open and vacuum leaks. |
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| Author: | 96 SSEi [ Sat Sep 23, 2017 10:14 pm ] |
| Post subject: | Re: 1990 bonneville will not idle |
YES, UNPLUG THE MAF SENSOR AND SEE IF IT IMPROVES. then you can check the IAC IDLE AIR CONTROL. if that fails, it would cause your issue. |
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| Author: | retroren1 [ Sun Oct 15, 2017 11:26 am ] |
| Post subject: | Re: 1990 bonneville will not idle |
I had this same issue on my '90 bonnie and it was the iac. |
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