Chrysler aftermarket 02 sensors

If you use aftermarket 02 sensors in Chrysler vehicles with 2.5 volt ground bias you will get only p0132 or p0152 codes signal voltage high? Is this correct? Or can you get heater control circuit faults? Thank you.

Basicaly Chrysler OEM sensor were very specific Bosch type with the correct resistance hence voltage. Link to YouTube Video

With the Chrysler 2.5 bias voltage, you cannot use Bosch replacement 02's. The Bosch 02's are not designed correctly for the 2.5v bias voltage. Notice your 02 voltages on scan... good 02 will range between 2.5 and 3.5 volts, the Bosch will range 3.5 to 4 volts which will set off the P0132 code. The ground signal should be steady at 2.5v while the signal ranges the 2.5 to 3.5v on good 02. The Bosch heater circuit works so you will not get a heater circuit code.

The Chrysler PCM is pretty smart, it senses the problem 02 signal and uses the good 02 signal to run the engine. The trims will be the same for both 02"s. If you can catch the signal before the PCM corrects, you will see negative trims on the bad 02.

Chrysler uses NTK 02 sensors... NTK and NGK are subsidiaries of each other.

ScannerDanner has a good video on this...

Thank you for information. I am aware of high voltage codes and watched two videos before. Have heater low voltage control code. No p0132 or p0152 code.

Although Bosch 02 heaters should work I would not use them. Have not come across low V in heater circuit using Bosch in Chrysler. Low V in heater points to bad 02. Could be short to ground in power wire. Go OEM problem should go away. If not, short to ground.

Would like to hear what you find.

I have seen non-OE sensors cause heater codes on Chrysler products. Less to do with the ground bias, more to do with incorrect pin locations.

Still, I'd test out the heater circuits with a substitute load before getting OE sensors.