Engine mis fires

Reply Subscribe

Thread Tools

Search this Thread

May 25, 2005 | 07:37 AM

2079

Thread Starter

Racer

Joined: Feb 2005

Posts: 436

Likes: 1

From: Gatineau Quebec

Engine mis fires

I just installed long tube high flow cats and TI catbacks. No tune.
It idles smothly . I took it out for a few spin and I noticed some hesitation like mis firing as i step on it also when I give it just a bit of gas, but once in full WOT it runs fine.
From the threads I have read it appears the the computre must adjust to the new air flow. I did verify that the plug wire are well connected. Ialso have a stinger air intake.
Will driving X # of miles solve this problem as the computer adjusts itself or is there something else i should do.
PS no code came up.

May 25, 2005 | 03:11 PM

2079

Thread Starter

Racer

Joined: Feb 2005

Posts: 436

Likes: 1

From: Gatineau Quebec

Can someone HELP me with this
ttt

May 25, 2005 | 04:24 PM

Monster231

Safety Car

Joined: Feb 2003

Posts: 3,865

Likes: 0

From: Chicago il

Go get it tuned.. You should after a header install anyway. I would also quadruple check the wires, Headers have a tendency to melt stuff

May 25, 2005 | 04:39 PM

dragon84

Drifting

Joined: Sep 1999

Posts: 1,574

Likes: 2

From: Orlando FL

Did you install 02 simulators? make sure you 02s arn't crossed. Thats the mistake I made.

May 25, 2005 | 05:09 PM

MY03Z

Heel & Toe

Joined: May 2005

Posts: 20

Likes: 0

Mine did the same thing as yours. Check your plugs. I had a cracked #7. Also get a tune. Good luck

May 26, 2005 | 12:46 AM

01C5fan

Racer

Joined: Oct 2001

Posts: 483

Likes: 0

From: Downingtown PA

Bet you burned up the #7 plug wire. This is a problem with long tube headers. Get some high temp wires and sleeves. Taylor Thundervolts and Koolsox sleeves have worked for me. Be sure to sleeve the #7 wire. It always seems to go first. Good luck.