Disabling Cat Diagnostics

**Bedwards** · 11-22-2010

Originally Posted by Bio248

you have a wideband in your rear o2 sensor bung after the cat?

Yes, however I don't have a cat, I have headers.

Originally Posted by 01GTP

I am assuming he did not install a cat with his speed daddys and is just using the extra bung in the rear.

Correct.

Originally Posted by Lawngoose

Bedwards I was a victim of the 16.4 issue. If you can load a bin file into hptuners...let me know I got a fix. Mines a 2002 btw.

Originally Posted by gtpracer0186

I have the same problem, what did you do to fix it?
Thanks

I didn't adjust anything. I don't even have my HP Tuners yet (should arrive anyday though

). I have an Intense custom mail-order tune right now with the option "Disable rear O2 sensor DTC's" selected. I took my rear O2 out, and replaced it with the wideband. Car runs perfect and fuel trims are exactly the same.

**FoSHO99** · 11-24-2010

You can disable it in Tiny Tuner. I'm not on here or don't have much time to post here anymore, but it is possible in Tiny Tuner. Look in diagnostics> cat diagnostics and set the cat diagnostics to 0.

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