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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 12-02-2017, 11:19 AM   #1
s15ca
 
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sr20 idle off and exausht note off after warming up

runs awesome when it starts up cold, and continues to run properly unless the vehicle gets shut off and restarted when it is still warm.

the symptoms are:
engine shaking
idle off
exhaust note sounds like it is fluttering
vac sits at 14-16 ( when started cold usually sits at 18-20)

any help would be awesome
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Old 12-03-2017, 02:46 PM   #2
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well since you say vac is at 14-16, leads me to believe a boost leak or vac leak somewhere.

I just had a similar issue that ended up being a MAF.

You can turn your ac wide open and see if it helps. Might be an IACV issue
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