Just installed hooker LT; car runs rough
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From: Detroit, Michigan
Just installed hooker LT; car runs rough Installed hooker LTs on a 00 ta. Had to bend up the egr to get it to fit. Had custom Y made. No xhaust leaks. With the cutout open or closed the car still idles very rough. surges from 500-1100 randomly. Still has stock program.
What could be causing this? The car has o2 simms also. I have heard of the car running a little rich (or is it lean?) when headers are put on, but never to the point where it almost stalls. The car stutters a bit, and feels slightly underpowered.
With the o2 simms in, why is the ses light still on? Could the crimmped egr tubes be the culprit? Should we rip that crap off of the car?
Any help appreciated. Headers look and sound great, but the car idles like it has a 110 lsa cam in it. What gives? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
What could be causing this? The car has o2 simms also. I have heard of the car running a little rich (or is it lean?) when headers are put on, but never to the point where it almost stalls. The car stutters a bit, and feels slightly underpowered.
With the o2 simms in, why is the ses light still on? Could the crimmped egr tubes be the culprit? Should we rip that crap off of the car?
Any help appreciated. Headers look and sound great, but the car idles like it has a 110 lsa cam in it. What gives? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Re: Just installed hooker LT; car runs rough did you reset the pcm or anything? with this new mod that greatly improves exhaust flow, your computer will need a little bit of time to "relearn" all the parameters. i would suggest running autotap of you got it to keep an eye on everything in case of any SES lights.
Chris
Chris
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From: Lincoln Park Mi
Re: Just installed hooker LT; car runs rough make sure the O2s are in good, and that you didnt get any anti sieze on the sensor part of it. make sure the wires arent burned up. maybe you have a bad extension. A tap and see what the code is
ALso recheck the plugs and wires to make sure they are on OK. one guy had a problem with his, everyone thought it was air getting to the O2 sensor, turned out it was just a loose plug wire.
EGR could be throwing a code, but shouldnt affect the idle like that...
where are you guys at exactly?
ALso recheck the plugs and wires to make sure they are on OK. one guy had a problem with his, everyone thought it was air getting to the O2 sensor, turned out it was just a loose plug wire.
EGR could be throwing a code, but shouldnt affect the idle like that...
where are you guys at exactly?
Launching!
Joined: Jan 2002
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From: Charlotte, NC
Re: Just installed hooker LT; car runs rough One other thing to check...make sure your plug wires arent to close or touching the headers....heat soaking the plug wires can cause surges as well. Just a thought. Peace.
Re: Just installed hooker LT; car runs rough </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by PHANTA-Z:
<strong>One other thing to check...make sure your plug wires arent to close or touching the headers....heat soaking the plug wires can cause surges as well. Just a thought. Peace.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">never heard of that before. can you explain more as to why that happens? i've heard of the fuel lines and vapor lock and stuff like that. but nothing like what oyu have described. thanks for any more help.
Chris
<strong>One other thing to check...make sure your plug wires arent to close or touching the headers....heat soaking the plug wires can cause surges as well. Just a thought. Peace.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">never heard of that before. can you explain more as to why that happens? i've heard of the fuel lines and vapor lock and stuff like that. but nothing like what oyu have described. thanks for any more help.
Chris
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From: Detroit, Michigan
Re: Just installed hooker LT; car runs rough thanx for all the help so far guys <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Freak, we are in Sterling Heights. I belive it was you i talked to at Milan. I had the red 02 formula. My buddy that was with me, its his car that we put them on.
At idle in drive, the car shakes alot. It drops down to 500-600 rpm and the y pipe starts to bang agains the floorboard. It has gotten better over the last 30 miles of driving, but still not normal.
Our club Motown Muscle is having a dyno this satruday at Automotive Performance Engineering (APE). I will be dynoing mine, and my freind want to bring his. He says the car is fine now at anything above idle and that it pulles hard on the top end (duh!). So we will have the guys at APE have a look when they throw it on the rollers.
Freak, we are in Sterling Heights. I belive it was you i talked to at Milan. I had the red 02 formula. My buddy that was with me, its his car that we put them on.
At idle in drive, the car shakes alot. It drops down to 500-600 rpm and the y pipe starts to bang agains the floorboard. It has gotten better over the last 30 miles of driving, but still not normal.
Our club Motown Muscle is having a dyno this satruday at Automotive Performance Engineering (APE). I will be dynoing mine, and my freind want to bring his. He says the car is fine now at anything above idle and that it pulles hard on the top end (duh!). So we will have the guys at APE have a look when they throw it on the rollers.
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From: Lincoln Park Mi
Re: Just installed hooker LT; car runs rough yea it was me you tlaked to at Milan, I answered you in the oteher post...
how many miles are on the car (since the header install)? maybe its runnign really rich or really lean at idle... have you auto tapped it?
how many miles are on the car (since the header install)? maybe its runnign really rich or really lean at idle... have you auto tapped it?
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From: Detroit, Michigan
Re: Just installed hooker LT; car runs rough We dont have a-tap, however i'm sure there will be a few people on saturday that have it. We'll check it out then. If not, APE can do it.
<img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
<img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Re: Just installed hooker LT; car runs rough Make sure you check each plug wire for even the tiniest cut or tear. Also, make sure your O2 sensor wires are not melted. Sounds like a bad plug wire though.
I've also seen a car where someone "accidentally put the O2 simms in the front holes!!! Ended up completely melting the cats!!!
I've also seen a car where someone "accidentally put the O2 simms in the front holes!!! Ended up completely melting the cats!!!
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From: Salisbury, Md
Re: Just installed hooker LT; car runs rough Yeah, that guy with the loose wire was me. CHECK AND CHECK AND CHECK those damn wires. My car did not idle real bad but when I gave it any kind of throttle would studder when I had problems with the plug wire. Good luck!