I did the same thing to my 99 get and it threw the same codes. I dealt with it for awhile but I finally just hooked the sensors back up behind the radio. And they haven't came back up since.

I've got tunes done there before but that's it. They're pretty good people, if they can't do it im sure they'll point you in the right direction.

Have you tried calling the performance factory in concord? Im not sure if they do it or not, I just know there a pretty big shop. Just throwing suggestions out there. Haha

If it's heavier then it quality.ROFL jk you all, you can now proceed. Haha

Hmm how much does o-ringing cost? I have mine apart and might go ahead if it's not out of the budget. :cool:

Yeah that's what in gonna do, im gonna call around Monday and see who I can find to check it out. If it's messed up I'll just put the Hyundai head on.

@pauleyman It's a split thrust 7 bolt block.@boostdawd yeah I have the head back off, I can't visually see any cracks. But when I did the leak down test you couldnt hear the air coming from the intake or anything other than just right over the top into cylinder 1 plug.

@kmetiuk I didn't have a sanding block but used a plastic scraper instead. I have a Hyundai head that I know is good, Im thinking of using that and chase the threads like you was talking about.

So the valves are fine and the piston rings are fine. But all im hearing is air from the spark plug hole when I do the leak down test. I know it's not the tester because I used it on the other cylinders and it didn't do it. Just on number one. So in gonna take the head off tomorrow and get it...

I've done many headgasket jobs on these cars so I know that was installed right. And I check the head surface and it was well within spec. The only thing I didn't look at was the valves because everything looked like it was just a hg. so I guess in gonna do the leak down test tomorrow and finish...

Oh and no the other plugs are dry.

Well if you do have enough time then that would be cool, if not it's okay. HahaNo it had a composite on it and I put a new felpro composite back on. I don't really like putting a MLS on unless everything is 100% flat.See thats what I was looking for when I first lifted the head off and...

Yeah it was good too. That's what I don't understand right now. @91talonts1 if you wasn't 3 hours away from me I'd ask you to come look in person. Haha

Oh im buying a leak down tester and air compressor tomorrow.

Coolant is disappearing faster now and the #1 spark plug is covered in oil. Also there is white smoke coming from the exhaust and when you open the oil cap. Then I looked at the exhaust manifold and found oil forming to the top of it through a crack I didn't see before, and around runner #1 is...