[200q20v] Rich Running
Derek Pulvino
dbpulvino at hotmail.com
Tue Jul 10 09:36:55 EDT 2001
Hey all,
Anybody have any suggestions as to what would cause rich running in the 200?
Haven't run fault codes yet, but I have noticed on startup the car runs
rough, idle fluctuates, and once in a while will emit a gray cloud on
startup (like this morning). From the smell, I'm real sure this is fuel,
not oil burning. Also notice while driving hard often times I'll get a
catalytic converter smell, this with the car warm. From what I know about
cats, doesnt this also show rich running? Don't the cats function to remove
unburned hydrocarbons before they can be released to the open air?
Although gas mileage hasn't been noted to diminish lately, my guess is the
car is running rich across the board, just don't know why. Anybody think a
bad tbv would contribute to this? The car also stalled on letting off the
throttle last night.
Any help or input would be appreciated, would like to clear this up before
too much time; don't want to ruin some cats because of an improperly tuned
engine.
Derek "smoggy" Pulvino
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