Stumbling after LT install!
Thread Starter
Launching!
Joined: Feb 2005
Posts: 272
Likes: 0
From: Southern California
Stumbling after LT install! I had a set of Pacesetter LTs and a custom made ORY installed the other night. I added the front O2 extensions with rear deletes. I had the code for the rears erased. I fired the car up and it sounded ok, but after I drove off it sounded like a popcorn machine. It backfired like a motherfxxxxr and stumbled almost to the point of stalling. I have no idea where to start. It seems to have less power than it did when I had the stock manifolds on it. I need help...... 
I've fired it up a couple of times, checked all the plug wires, and I'm still lost. Any ideas???
I've fired it up a couple of times, checked all the plug wires, and I'm still lost. Any ideas??? 
i was just informed tonight but the cause of alot of crackle and backfire after a header install is a leak where the header bolts on ( air gets in on decel. and ignites in the pipes causing a backfire, check the tightness of the bolts and check the gaskets, did you use the paper ones that came iwth them or other gaskets ?
10 Second Club
Joined: Aug 2005
Posts: 567
Likes: 0
From: Tennessee Tech
We installed headers on Camy yesterday and couldn't be more pleased with the outcome. I've heard of cars getting headers installed and running perfect.. But I've also heard of LS1s getting headers and running like shis. Your best bet would be to see what the A/F ratio was, or even a dyno tune just to see where it's at, and mabie you'll be able to point out the problem. Thats what people told me to do if Camy had your symptoms.....
