Originally Posted by clinebarger
Originally Posted by Chris142
My Jeep came from the Factory with NTK's. Thats what I put back in it. The Bosch ones threw codes.
Chrysler like to use a 5 volt bias on the O2S signal wire & I've seen it screw with certain brand O2 sensors. Ford uses no bias voltage & GM uses a .447mV (1/2 volt) bias. I understand why Chrysler does it.....To quickly diagnosed a bad O2S heater. The voltage will nose dive pretty fast with a working heater.
Though maybe it's not be the brand at all?.....I've seen new/fairly new looking Bosch sensors just hover at 5 volts even though the heater circuit checks out (Ohm & Amperage). Then I put a new genuine Bosch sensor in & it goes to work.
I wonder if there are fake Bosch sensors floating around? Ford has used Bosch O2 sensors as OE forever.
There are most definitely fake Bosch as well as other brand names. Original Bosch have always been good for me.
Originally Posted by Chris142
My Jeep came from the Factory with NTK's. Thats what I put back in it. The Bosch ones threw codes.
Chrysler like to use a 5 volt bias on the O2S signal wire & I've seen it screw with certain brand O2 sensors. Ford uses no bias voltage & GM uses a .447mV (1/2 volt) bias. I understand why Chrysler does it.....To quickly diagnosed a bad O2S heater. The voltage will nose dive pretty fast with a working heater.
Though maybe it's not be the brand at all?.....I've seen new/fairly new looking Bosch sensors just hover at 5 volts even though the heater circuit checks out (Ohm & Amperage). Then I put a new genuine Bosch sensor in & it goes to work.
I wonder if there are fake Bosch sensors floating around? Ford has used Bosch O2 sensors as OE forever.
There are most definitely fake Bosch as well as other brand names. Original Bosch have always been good for me.
