rough idle Q's

tbird79

Registered User
Hey guys, you always come though when there is a sc problem, so ill throw another one at ya!

Driving my 90 sc normally and all the sudden the idle goes really low (450rpm) and fluctuates, but usually doesnt stall. The vac/boost guage is only at around 10 Vac. And after letting it idle this way for any amount of time, the car smells like its running really rich.

i ran codes and got these

code 21-etc sensor
code 72 & 73 insufficient bp change and insufficient tp

dunno if those help or not.

Thanks for any input guys

Joe
 
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