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> Odd sputtering and rough idle
post Apr 4, 2013 - 7:30 PM
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Malek



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I know the 3SGTEs are notorious for destroying distributor caps and rotors and plugs, etc. but from what I read on here and other forums about this issue doesn't seem to quite match up to my issue.

Symptoms:
-Cold start: idles high normally
-Once warm: idles rough (misfire) and fluctuates 750 - 1000 rpm
-When driving: Major hesitation up to about 3k. Sounds of misfire.
-Above 3k at steady throttle, seems to run fine
-When giving good amount of throttle, doesn't pass 5-7psi and replicates video (below)
-Wideband reads 15ish when above is happening

A comment in the video said they changed their spark plug wires on their GST and it went away..however, this Evo is boosting pass 20psi and I can't get past 7..


Evo 8 Boost


Any suggestions before I jump into dizzy, wires, plugs..? Thanks!


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post Apr 5, 2013 - 7:06 PM
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Malek



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Update:

Changed the spark plugs.

All better.

SN: I didn't bother changing any of the ignition stuff for the swap because I figured it'd last me to the summer when the engine would be taken out again anyways haha apparently not!


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Posts in this topic
- Malek   Odd sputtering and rough idle   Apr 4, 2013 - 7:30 PM
- - lagos   Check for boost leaks or any disconnected hoses, e...   Apr 4, 2013 - 11:03 PM
- - Box   IACV perhaps?   Apr 5, 2013 - 12:07 AM
- - Malek   Art, that is the most comprehensive check list I...   Apr 5, 2013 - 11:52 AM
- - Malek   Update: Changed the spark plugs. All better. SN...   Apr 5, 2013 - 7:06 PM
- - Box   Yay for easy fixes!   Apr 5, 2013 - 8:24 PM
- - lagos   QUOTE (Malek @ Apr 5, 2013 - 8:06 PM...   Apr 6, 2013 - 12:29 AM
- - BonzaiCelica   ok so bump. i'm pretty sure its the Idle Air C...   May 28, 2013 - 1:58 PM


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