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  #46  
Old 08-29-2011, 07:34 PM
1986nate 1986nate is offline
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Re: stumbling idle and backfiring, PLEASE HELP!!!!!

Quote:
Originally Posted by 92_LSL View Post
When are you coming?
Not til mid-end of September.
If it's not throwing a Cel when you unplug the sensors, does the CEL show up when you first start the car?
If it does, might want to check grounds or possibly try another ECU
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  #47  
Old 08-29-2011, 08:30 PM
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92_LSL 92_LSL is offline
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Re: stumbling idle and backfiring, PLEASE HELP!!!!!

The light comes on right before you start the car, which is normal. Other than that, no. This is starting to really confuse the hell out of me.
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  #48  
Old 09-05-2011, 10:10 AM
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Earthworm Earthworm is offline
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Re: stumbling idle and backfiring, PLEASE HELP!!!!!

The CEL for the O2 sensors may not show unless the engine is warm.
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  #49  
Old 09-05-2011, 11:29 AM
Subaru Alliance Subaru Alliance is offline
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Re: stumbling idle and backfiring, PLEASE HELP!!!!!

earthworm said it right, the engine will run in closed loop mode until its warmed up, closed loop just means its not taking any reading from the o2 sensors that may be why there was no CEL when you unplugged them.

try running or driving it for about 15-20 then shut it down and unplug the 02 sensors and restart. hope this helps
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