For an OBD-0 ecu, can crome eliminate the need for the secondary O2 sensor? I was planning on running only a heated 4-wire O2 sensor for the primary since the header bung is way down on the collector. But I am going to have to run the secondary O2 sensor, if so, any suggestions where to place the bung for it?? Thanks

 

Bump for Crome Users

 

you would probably get a better answer at pgmfi.org, not too many crome user with obd0 in here. i don't know now you are planning on running a heat o2 sensor with obd0 ecu. are you running a separate heater controller for the o2 sensor. if you are going to keep the sensor setup like oem, than they have to be from cylinder 1-4 and 2-3, if not your car will run like crap at part throttle. if you are just going to run 1 o2 sensor, then just hook both o2 wires from the ecu to the one sensor, that's how i had my setup on my boosted b16a with pr3 ecu. i just used one single wire 02 sensor and mount as close to the down pipe as possible to get enough heat.

 

considering crome is based off p30 code, and is only for obd1 ecus, I highly doubt its going to do you any good. You should go over to the pgmfi forum and read up more

 

you should ask questions on the pgmfi.org forum