prove_it
Well-known member
Curious if anyone else has been having issues in keeping the bosch 3737 wideband sensor alive. In the last 30k miles and 4 years I've had 4 sensors fail now. Each one will just stop responding. I've done free air calibration, heater calibration, checked voltages and such. Seems like they are dying to fast. 2 sensors on E85 and 2 on gas have failed. Only moving about 36-38lbs/min air, no leaded fuel, not burning oil, also the sensor is located far down by the front axle in front of the rear subframe. I suspect that they are getting hot, so I'll be adding a heat sink to the new one. Luckily oreilly's auto parts has them for about $50, just don't get why they die so fast.
I was wondering what everyone thinks about this.
I was wondering what everyone thinks about this.