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erratic idle

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Old 09-01-2012, 12:49 PM
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Default erratic idle

made quite a few changes to my dakota lately..new tb, mopar ecu, headers, new wires,plugs, wires, coil, modified beer barrel intake..etc. was having problems getting it to start but figured that out but now it has an erratic idle.. and eventually dies. any pointers on what to check first? i am guessing a vacuum leak somewhere..
 
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Old 09-02-2012, 08:06 AM
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Try running some seafoam through the gas and also through the oil. Check your IAC valve and make sure its cleaned. Does it do it when its cold or warm? Or both? Since all the changes also try resetting the pcm and the drive it and let it relearn everything.
 
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Old 09-02-2012, 08:21 AM
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Have you cleaned the throttle body?
 
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Old 09-02-2012, 08:21 AM
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I now read you did, so sorry.
 
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Old 09-02-2012, 09:48 AM
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My guess vacuum leak too, a bad EGR may fall in that category.
 
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Old 09-02-2012, 10:21 AM
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egr was eliminated as part of my recent mods
cold start ( haven't driven since doing everything)
ripped off intake manifold ( going to try resealing it)
going to either clean or replace the iac - mine is pretty dirty ( though didn't do it before I did everything)
installing a screaming demon coil ( they recommend 0.65 spark plug gap but my experience doing that with the ranger- runs like crap so gapped them at 0.45)
 


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