Failed inspection

[88Racing]

Originally Posted by Stealth

I'm not showing any codes stored on the tuner. Before the tune adjustmest and after the header install I got a couple of cat inefficiency codes with a light on the dash. I had bill adjust the tune to turn off. The rear o2's so the codes wouldn't come up. Since I knew the cats were small I put on the larger magnaflow cats. Never had an issue before with inspections and bills tunes. So will I be ok setting to stock for the inspection after drive cycles???

Just leave the custom tune loaded.....reset pcm....do the drive cycles....

your programmer cannot read if the tests have cleared...there's another scan tool for that....

[Stealth]

I'll try. Hope it works. I can't afford another $40 for inspection being out if work right now.

[Stealth]

The codes that I had were p0420 and p0430. Bill adjusted the tune to turn off the rear o2's so these codes wouldn't arise. After he did that the codes never came back. Fast forward six months to now and I have better cats and the cayalysts and o2's read not ready on the inspection report. This is why I believe the rears were not turned off in the tune properly. It is my opinion that returning to stock would be my best bet vs trying the same tune again. Opinions? I need an answer soon. lol

[88Racing]

Originally Posted by Stealth

The codes that I had were p0420 and p0430. Bill adjusted the tune to turn off the rear o2's so these codes wouldn't arise. After he did that the codes never came back. Fast forward six months to now and I have better cats and the cayalysts and o2's read not ready on the inspection report. This is why I believe the rears were not turned off in the tune properly. It is my opinion that returning to stock would be my best bet vs trying the same tune again. Opinions? I need an answer soon. lol

I left Bill a note....

[Stealth]

I will try that.

[Stealth]

Tow tune that is. I'm taking the truck to walk the picket line tomorrow morning and that's a fifty mile round trip or so and we will see if anything pops up.

[Power Hungry]

Bill,

I made a small update to the file which shuts off certain OBD II monitors pertaining to the O2 Sensors. This MAY work to help you get through emissions. However, when disabling the monitors, the testing equipment may see that as an error and still fail you. It all depends on the testing equipment.

The download is available at your convenience. If this does not resolve the problem, then your only other recourse would be to change the CATs again and reset the O2 sensors back into the tunes.

These emissions testing places are getting to be so friggin' difficult. Why can't they just sniff the exhaust and go? I could just about guarantee that you're running cleaner than anything required by the EPA, regardless of what the "system monitor" says. But, it's all government interference to protect us from ourselves.

Let me know how it goes.

On Edit -

Actually, after re-reading your posts, I went ahead and reset the O2 sensor function back to normal. That update is now available in Pegasus for download.