I'm looking to buy a code scanner for my 2002 WRX, I just can't find any online. Its not a obd2 code scanner. Which one is it? Anyone help my out please!

 

What kind of codes? Error codes? Why don't you want OBDII?

 

Yeah, I just bought the car and it came with performence exhaust so I ordered a o2 sensor eliminator and I just wanted to get a code scanner to clear it and check it in the future. Why pay someone else to check it for the price you can buy a scanner. I didn't think the obd2 scanners worked with the WRX, but I did find one that is compatible on E-Bay. I'll probably just bid on this one. Stinger 3769 OBD2 Code Reader Innova 3100 Subaru.

 

All 96-up passenger vehicles sold in the US are OBDII compliant, and this most certainly includes the WRX. Any generic OBDII scanner/reader should work, although there have been issues with some of the cheaper ones not connecting to our cars properly. Also there are manufacturer-specific codes that may not read properly on some units, if they do show up you may get only a number and not a description. A better scanner will be programmed with this data.
I'd suggest you take a look at the Code Scout which is a new unit from AutoXray. I've used their products for many years and am very happy with them. www.autoxray.com
If you have done the "fix" properly the code for catalyst inefficiency should not come back, if it does something is wrong. You may want to look into the "mechanical fix" which consists of a couple of spark plug anti-fouler adapters used as spacers to mount the rear 02. This is inexpensive, done with readily available parts from any auto parts store, and does not require cutting or splicing any wiring. Further if you currently have OBDII emission testing in your state, or expect to in the near future, the mechanical fix is a must because the electrical ones are known to interfere with the OBDII readiness tests and prevent them from completing. This will cause you to fail an OBDII inspection.

 

THANKS for the info! The o2 eliminator I'm getting is just an adaptor that the o2 sensor screws into and then the adaptor screws into the pipe. Do you think this is a bad idea? Here's a pic. http://i14.ebayimg.com/03/i/04/d3/2c/ef_2.JPG Minnesota stopped doing emission testing about 5 years ago.

 

I found the Autoxray Code Scout for $129.

 

That is a fancier variation on the mechanical fix. Depending on what you are paying for that, you may be better off just going to the parts store and spending the $5 or so on the anti-foulers, and doing it yourself. There are instructions on how to make the fix on NASIOC, probably here as well.

 

I spent about $40 with shipping. Already ordered it. Just waiting for it to come in the mail.

 

Yep you spent too much, could have done the same thing yourself for at least $30 less. Always a good idea to do some research on the forums first.

 

True that! I will in the future. Thanks

 

Just take the sensor out and replace it with a bolt :-)

 

That works for the EGT probe in conjunction with the 2.2K resistor fix, but not for the rear 02. You can't remove the sensor entirely, the ECU needs to see it operating. The fix modifies the signal so it appears that there is still a cat in place.