I got a code one showing on my pr3 ecu I replaced both o2 sensors cleared the ECU and started the car up and still have a CEL of one. No idea what's going on can anyone let me know what this could be. I just start the car not drive it should I have to drive it and get the temp up and hope the CEL goes away, or does the CEL clear after the ECU is reset.

 

anyone any help

 

any help

 

no one knows

 

this is a messege board right

 

bump

 

bump again

 

the Pr3 expects one sensor to read Cylinders 1+4 and the other 2+3, how did you manage to do this AND put a turbo on it?

 

the guy who built ny down pipe put 2 bungs in right before the cat on the down pipe, it worked fine for a year with out a problem.

 

yes but the PR3 or PW0 controls pairs of cylinfers if the O2 sensor sees other than the 2 it controls it will not get mixtures right. and 2 O2 sensors on a common downpipe will not let it control right. Unless its chipped for one O2 sensor then it runs like crap or you do ODB1 converion and it uses one O2 sensor the way it should. Something to keep in mind, I doubt a ODB0 ecu is going to be the best for you for this reason.

But I bet one of the two is having a problem THat is why you have a CEL, check continuity of wiring. Or one is bad.

 

so you think it could just be a bad wire

 

thanks for all the help everyone still have no idea what's wrong

 

the ECU is not seeing anything from one of the two O2 sensors, bad wire or bad O2 sensor.