Motronic / o2 question

[redcoupe86]

Hey fellas,

I've been tweaking on my new '06 WRX and half left my poor ole Porsche sit all alone in the garage driving it only a once or twice a month to keep things lubricated.

The last thing I had done to the car was get the mixture set. The wrench showed me a wiring diagram of my car and he had all the lines to the O2 sensor highlighted. He told me that the O2 computer part in the motronic box was not working. I guess he couldn't get a signal from it. My car does have a Steve Wong chip, no cat and does tend to smell very rich under acceleration and just sitting and idling. Is this normal? Does the Steve Wong Chip stop the motronic from using the O2? I've been away from working on my car and I feel like I've forgotten all I've learned!

My question it how can you test if what he says is wrong truly is. I did put on a new O2 before I had the car tuned.

The car is stock other than the Steve Wong chip and Fabspeed exhaust (both put on by previous owner).

BTW, here's a pick of my ride - it's a stage 2 with about 280 hp/340 tq.

[Steve W]

For U.S. cars, my chips are all designed to recognize and work with the O2 sensor, unless it is a Euro/ROW model or is a customized version designed not to utilize the sensor (some race versions). I'd need to know more about the numbers on the chip and/or the customer name. Send me an email with the info and I can look it up.

[DonMo]

I know a guy here in Pompano, Fl that will bench test your Motronic for $60 and tell you what is wrong, repair for $250. Specialed ECU Repair. He just did a fine job fixing my brain.

[redcoupe86]

Steve Wong contacted me in an email about my specific chip and it seems that its an older chip with a specific codes so as not to recognize the O2. I think I will be taking my chip out and sending it back to SW for a remapping. I have a question to him about that right now, and I am awaiting a reply.

Thanks for the info though.

Originally Posted by DonMo

I know a guy here in Pompano, Fl that will bench test your Motronic for $60 and tell you what is wrong, repair for $250. Specialed ECU Repair. He just did a fine job fixing my brain.