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#1
12-02-2008, 12:15 AM
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Eating up O2 Sensors -- Running Rich
My car has been running rich for quite some time now. Replacing O2 sensor doesnt help (have to replace it once a year!). What is causing this thing to run so rich? Occasionally I throw the running too rich code but it will turn off.
Somehow, I passed smog today but 61/61 on Hydro Carbons (maxed!). I'm sure the problem is related. And if I get on it, there is a good amount of black smoke. What is causing this? MAP? Still runs rich after full tune up too... 
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