would a hole in the muffler trip the CEL for the 02 sensor?
would a hole in the muffler trip the CEL for the 02 sensor?
No. What is the car and what is the code?
96 grand caravan. and i believe it was po134.
I found some info on po134 here: http://www.obd-codes.com/p0134
It pretty much says, if your sensor heating fuse is good, and all the wiring is good, then it's time to replace the sensor.
"A code P0134 may mean that one or more of the following has happened:
Bad O2 (oxygen) sensor
Bad heater circuit in the O2 sensor
Wiring or connector to the sensor frayed / broken
Blown heater circuit fuse
Holes in the exhaust system
PCM failure"
People tend to forget that all of these sensors are connected to the ECU by wires.
What I got (as I e-mailed the op), its important to see the voltage across the sensor. What I read the code as stated, the voltage across the sensor is not changing. Most likely conclusion: bad sensor. Unlikely to be a harness problem.
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