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running rich

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malin819

10+ Year Contributor
53
0
May 29, 2012
ottawa, QC_Canada
1990 talon fully buit motor

Aem ems with sd

When the car cold...the af is between 14.7 15.3 but once its warmed up, 12.8 13.5. Thats for idle and cruising...

Could it be a bad o2, wideband problem, coolant temp sensor?

Only running rich when the car is hot
 
You can't calibrate a UEGO. Sounds like a front o2 problem.
 
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