What are some causes of fouled 02s
12-31-2007, 02:02 PM
#1
What are some causes of fouled 02s Ok, so I had a similar problem on my heap about 3 months ago, replaced 02s, can ran great....well its back. Car is fine until 02s start taking readings, stumbles like hell part throttle, fine WOT. Also noticed on the garage floor an *** load of black soot (i assume carbon deposits being blown out) where the exhaust exits under the car. Car hasn't moved for a while now, just started, brought up to temp and revved a few times over the winter. My ? is what could be causing the 02s to foul so quickly. Plugs/wires are fairly new, about one year on both, car is only driven maybe 10 miles a week....more of just a bracket car.
12-31-2007, 02:37 PM
#3
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Did you replace all the o2's at the same time? anyways a buddy of mine replaced one o2 and then about 5 months later replaced the other one, then about a year later he replaced both at the same time and he hasnt had any problems since ( about a year or so now)
