Switch to a heat O2 sensor Q

[cuervo]

Hey all,

I switch to a heated 3 wire O2 sensor and was wondering if I should disconnect the battery and let the ECM reset that short term memory I've read about. I think it was one of Scott's post that I read about some temp memory being lost when the ECM loses power.

 

[Keitha]

No need in my opinion. The O2 sensor is a constantly changing devise - there is no memory of the O2 sensor readings in the PCM.

 

[4xcrazy]

only memory there is when it faults, the codes are stored until you unhook the battery, unhook it for a bit, clears the codes, run it.