Rough Idle on Startup, exhaust smells rich

Slippery Nut

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Feb 21, 2016
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107
Location
Newcastle, WA
I just reinstalled my S/C after having it rebuilt. I've changed nothing else and on every startup after the car has been sitting for at least an hour, it idles rough for a few seconds and the exhaust smells like unburnt fuel. It clears up rather quickly. Other than that the car runs strong and doesn't throw any fault codes. The A/F reads 14.4 to 14.7 on idle. Any ideas here?
 

trmnator

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Aug 20, 2014
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16
Location
Spanaway, Washington
I take it this didn't happen before the S/C rebuild. Mine used to run good from a cold start and when warmed. If I shut it off for a short time it started rough and rich with NO low end power, had to throttle up a slip it a little to get going. The power slowly went down so I went in for a full on tune. #7 and 8 pistons and cyl walls were damaged. It doesn't do it now. Hate to be the ogre.
 

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