Thread: Stumbling then stall cold and warm start.

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  1. #41 Re: Stumbling then stall cold and warm start. 
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    Lol
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  2. #42 Re: Stumbling then stall cold and warm start. 
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    Question, when I unplug the maf sensor and TRY to drive it, it stalls and runs even worst, but mainly stalls. Since the map and maf works hand in hand does this mean I have a map problem?
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  3. #43 Re: Stumbling then stall cold and warm start. 
    Killa Bee Scottydoggs's Avatar
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    are you unplugging the maf engine off, then starting it? if you unplug it running it will really run bad.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #44 Re: Stumbling then stall cold and warm start. 
    GrandPrix Junkie SgtMarshal's Avatar
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    you can damage your maf if you unplug it with the engine running
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  5. #45 Re: Stumbling then stall cold and warm start. 
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    No the engine was off
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  6. #46 Re: Stumbling then stall cold and warm start. 
    Killa Bee Scottydoggs's Avatar
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    they dont run great with the maf un plugged. but if it runs better unplugged the maf is bad for sure. most of the time you get a code for the maf if its the issue.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  7. #47 Re: Stumbling then stall cold and warm start. 
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    Yeah, I figured if it didn't want to at least run without it then it had to be one of the other sensors
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  8. #48 Re: Stumbling then stall cold and warm start. 
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    Thought it may have been my old pcm but Since I keep getting codes p0133 and p0134 with my new afs109 I'm going to purchase another so what's the difference between the afs109 and 2131331
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  9. #49 Re: Stumbling then stall cold and warm start. 
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    So does this looks like the right schematic for the 2 o2 sensors on a l67?
    I already bought another o2 sensor if it doesn't work I'm going to have to do some hard wiring
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  10. #50 Re: Stumbling then stall cold and warm start. 
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    Well to help anyone with the same symptoms, yes it was my front o2 sensor. I read the instructions that came with my new o2 and it states do not drop. So ass I gathered my thoughts, my previous o2 sensor which was new had been sitting in my trunk along with my 2 15 inch sub's. So that o2 took a beaten for many months.
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  11. #51 Re: Stumbling then stall cold and warm start. 
    Killa Bee Scottydoggs's Avatar
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    theres a lesson learned. good hear its running better.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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