jmp13

Hi All,

This is my first post, I hope it's not poor protocol to ask a question on my first post.

I have a 2002 GT which I had purchased almost exactly 1 year ago. The guy I purchased the car from took it to get inspected (it was due) as a part of the sale. Passed no problem, and he claims it had been passing. He was the original owner, mods were BBK X-pipe with magnaflow cat-back. He says he did no tuning, and I trust him I have no reason to doubt him.

Fast forward to today, I took the car in for an inspection in Collin County TX and it fails. The tech said nearly every sensor reported n/s which he said meant it did not support the function. Cats, o2, a/c, evap, EGR everything was the same result.

His first question was if I had run a tuner to modify the chip, which I have not. Does anyone have any idea what this problem might be?

Any help would be greatly appreciated, I am at a loss.

school boy

That does sound odd, specifaclly if that includes the front o2 sensors. That would cause the car to run poorly. Something sounds off here

jmp13

Yes, it doesn't make a lick of sense to me. The car runs fine, exactly like it did when purchased. I know nothing of chip tuners, is it possible I can buy a tuner and correct the issue to pass inspection?

It seems nearly impossible for all these monitors to be out, it literally was all of them.

I am new to self car repair, having dealt with motorcycles in the past and trying to learn more about cars currently. Would a hand held tuner, like the SCT be the right step potentially to passing inspection?

SyNdicateZ

The computer has been tuned my friend...

I had the same issue last April- went to get car inspected...FAILED the OBll diagnostic check... All Moniters came back as "Not Supported". Which is a clear sign the cars PCM "computer" has been tuned/chipped.

I ended up having to go to my tuner to have I/M Readiness moniters turned back on. I then went back to get car inspected and the moniters went back to ready and I passed.


The person that sold you the car lied about NEVER getting the computer tuned.....

H0SS302

Take it to a dealership.... or drive somewhere that they dont do emissions checks(another county). Here in San Antonio you can damn near get an open header car passed.

jmp13

Is it worth buying a SCT tuner myself? Will I want to go back and get it changed again after inspection? I would rather buy it myself and do it myself if it seems likely that will resolve the problem.

Did you do this yourself?

crash

So moral of the story is if you want to do it right, go turbo? Can't wait for some videos of this monster. And races lined up?

PurpleIcedGT

Crash are you an idiot? Or just one dumb moteherfukker?

school boy

SyNdicateZ

He is failing the on-board diagnostic check.