Dewayne
07-13-2008, 12:09 PM
I checked and I have 4 O2 sensors in the exhaust system on the truck.
The truck has a small CAT on each cyl. bank. There is an O2 sensor before and after each CAT.
I know if I install an EFIE it has to go to the one in front of the CAT.
Do I need an EFIE for each of the front O2 sensors?
The truck has a small CAT on each cyl. bank. There is an O2 sensor before and after each CAT.
I know if I install an EFIE it has to go to the one in front of the CAT.
Do I need an EFIE for each of the front O2 sensors?