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Check engine light flashing !!

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Old Apr 28, 2008 | 09:57 AM
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Default Check engine light flashing !!

When i get on my car hard for like 3 gears, The check engine light will flash. The code that comes up is ( loss of communication with ecm) The car will run and drive fine the whole time. And the light will go out after a min or so. I'm running a P1sc with 10# of boost. any ideas?
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Old Apr 28, 2008 | 10:05 AM
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Miss fire code.
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Old Apr 28, 2008 | 10:07 AM
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OK, how do i go about fixing that? should i replace plugs and wires? and if i need to do the plugs which ones do i use and what gap. Thanks
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Old Apr 28, 2008 | 07:51 PM
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Been there, done that. Misfire. Its not bad enough to set it solid.

Could be plugs, wires, coils, or you could have a misfire due to injector.

First things first, check all connections, wiring, etc.

If thats fine, was the misfire due to extremely rich AF ratio? Like under 10:1. Some dynos wont read out under 10.
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Old Apr 28, 2008 | 09:50 PM
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Have someone scan it and see what cylinder it is, if it's one it's most likely a wire or plug. It if is in inconsistant cylinders and random, it is most likely in the tune.
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Old Apr 29, 2008 | 10:55 AM
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Originally Posted by DOUG @ ECS
Have someone scan it and see what cylinder it is, if it's one it's most likely a wire or plug. It if is in inconsistant cylinders and random, it is most likely in the tune.
Can you PM me some prices to look at it and maby a tune. I'm not to far from the GW bridge, and can come to you.
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