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EFI Rough Idle??

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Old Jun 9, 2017 | 10:17 PM
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connojo's Avatar
connojo
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Default EFI Rough Idle??
First off, I have a 2013 Breakout with 10,000miles and it has 10.5:1 comp pistons, ported heads, woods cam, throttle body, clutching, and a power commander 5 thats on auto tune. the last week or so on the first start of the day it idles really rough and sometimes the engine will stall. It smells like its running rich but I'm not exactly sure. Any suggestions?? Once it warms up it's fine.
 
Last edited by connojo; Jun 9, 2017 at 10:19 PM.
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Old Jun 13, 2017 | 12:23 AM
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connojo
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bad fuel maybe.
 
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Old Jun 13, 2017 | 01:29 PM
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Try cleaning the MAP sensor in the throttle body. Might as well clean the IAC while you're right there too. Give that a go and see what happens.
 
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Old Jun 13, 2017 | 01:42 PM
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Might try to undo the battery connections let it set for ten-twenty min that should do a hard restart on the ECU, It's free and a starting point for trouble shooting your problem.
 
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High idle when warm, perfect idle when cold.




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