Scottydoggs
Killa Bee
p0420 is a cat code. how many miles are on the car? it could be clogged up.
Constantly driving with a plugged cat would blow gaskets as a worse case, so you would be going back to page 1 of this thread.
Thanks for tackling this steelholder and scottydoggs for being there for troubleshooting. Followed from the beginning. I have never pulled an engine or tranny but with the help here I feel it's very do-able. I do all my fixing and maintaining on cars and like Scotty hate paying others to do stuff. Luckily never had to go that deep. I probably should have played with my old 2000 GP with 330K on it when it froze up, my guess now is it hydro locked but everything was used up on that, body, original struts and interior only an SE also. I have 2 daughters driving GP's now that are both supercharged an 07 and an 03 with 168k and 200 k respectively. Kind of jealous I don't get to drive them more. The are a blast to drive.
Thanks again for the education.
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I don't think poping a new car in is hard. But the price tag stinks. And your in ca so no other choice.
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how in the world would you know if its clogged or not? heres the test, unbolt the down pipe, see if it stays running. if it does the cats clogged up.
i only suggest this cause we know them bolts will come off easy, cause you just put them back on.
most of the time you pull the or sensor out the rear manifold to let exhaust escape.
if the cat broke apart it can block the pipe lets some flow by then hit a bump and clog it all the way or open it up. hit the cat, listen for stuff bouncing around inside it.