P0135 How do I fix?
P0135 Upstream Heated Oxygen Sensor Heater circuit fault - Bank No. 1.
Just installed Kooks LT's and off-road H. Got a new tune from bama. About 5 minutes after I started it I got the CEL with this code. If its a problem with the tune would I get another code for the other o2 sensor? The exhaust smells rich and it runs a little ruff when slowly accelerating, but it seems fine at WOT Thanks, Adam |
Did you install the headers, or did you have someone else do them? Are you sure you connected the electrical connections for both 02 sensors? Did you accidentally use a rear 02 sensor in the place of a front one? Make sure the 2 02 sensors you have left over are the same color. I think the upstreams are green and the downstreams are blue... but i may have those mixed up.
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Ya I installed the headers myself. I am positive everything is connected. 2 green o2 up front and 2 blue in the back
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