Mechanics

K5 CODE 13

1991 Chevrolet Blazer

I Have a 1991 chevy k5 (v10 4x4) blazer mileage 202636 with a manual trans last night it I started running realy bad its sputtering and barly running I ran the error code and its coming up code 13 wich is o2 sensor circiut open I replaced the o2 sensor still didnt help
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Chevymetal1991
June 6, 2007.




If you are still getting the same code then I would check to wiring/harness to the O2 sensor. If the O2 sensor wasn't bad/open then it is probably the wiring.

Tiny
Backyardmechanic
Jun 6, 2007.


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