P0134 code after header leak
#1
P0134 code after header leak
So my drivers side header bolt fell out causing my header gasket to fail now I have p0134 code (O2 sensor bank 1 sensor 1) no activity. Could this be from the header gasket failing? Now that sensor is cooked? How do I tell if it's the sensor Forsure and not the wiring etc?
Thanks
Thanks
#4
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Re: P0134 code after header leak
I seem to remember Fred saying that certain adhesives/sealers can damage the O2 sensors. I don't remember the details however. Did you use any of those to fix the leak?
#5
Re: P0134 code after header leak
P0134 indicates that the O2 sensor reading is static, in the range of 352-552 mV. That typically means there is an open circuit, and the PCM is "seeing" only it's own bias voltage (450 mV). Swap the left and right bank pre-cat sensors side-to-side. If the problem stays on Bank 1 (P0134), it's a wiring problem. If the problem follows the sensor to Bank 2 (P0154) it's a sensor problem.
Silicone ingredients in sealers like RTV can contaminate the sensors.
Silicone ingredients in sealers like RTV can contaminate the sensors.
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