long tube header problem
Thread Starter
Teching In
Joined: Sep 2002
Posts: 36
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From: Sanford, fl
long tube header problem I just installed SLP headers ans cats on my 2002 TA ws6. Why does WOT hit the rev limiter now? Also, after 2 days my service engine soon light has come on. Any suggestions why? I used all OS sensors and cats.
thanks
art
thanks
art
Re: long tube header problem I'm not sure about the rev limiter, but I had to have my rear o2's deleted to get rid of the ses light. Even when it was cleared with atap, it would still come back in a few days.
TECH Fanatic
Joined: Nov 2001
Posts: 1,695
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From: Raleigh, NC
Re: long tube header problem Hey Man,
Do you mean that your engine is hitting the limiter before your tach says it should? If so this is pretty normal with LS-1 cars that have a good amount of power mods. The tachs become unable to keep up after you make a lil more power than you were off the assy. line. Does it only do this in first gear? If it does this in all of the gears than it may not be your problem. Does it feel like a miss, or is it detonation (sounds like marbles in a tin can). Usually cars go rich after a header install but it is still possible that you could be lean and detonating. Another possibility is bad gas. I got a bad tank of gas a couple of weeks ago and my car developed a miss at higher RPM in first gear (felt like it was tapping the limiter) burned that tank of gas out and went to a diff. place for some gas and octane booster, problem fixed. Like said above the SES light is probably from your rear o2s. Have them deletd via EDIT or get some sims. LTs also frequently throw two other codes (cant remember the numbers do a search in the computer section). Hope this helps
-Nick
Do you mean that your engine is hitting the limiter before your tach says it should? If so this is pretty normal with LS-1 cars that have a good amount of power mods. The tachs become unable to keep up after you make a lil more power than you were off the assy. line. Does it only do this in first gear? If it does this in all of the gears than it may not be your problem. Does it feel like a miss, or is it detonation (sounds like marbles in a tin can). Usually cars go rich after a header install but it is still possible that you could be lean and detonating. Another possibility is bad gas. I got a bad tank of gas a couple of weeks ago and my car developed a miss at higher RPM in first gear (felt like it was tapping the limiter) burned that tank of gas out and went to a diff. place for some gas and octane booster, problem fixed. Like said above the SES light is probably from your rear o2s. Have them deletd via EDIT or get some sims. LTs also frequently throw two other codes (cant remember the numbers do a search in the computer section). Hope this helps
-Nick
Thread Starter
Teching In
Joined: Sep 2002
Posts: 36
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From: Sanford, fl
Re: long tube header problem Thanks guys for the info. I installed superchips tuning this morning with the handheld tuner and the SES light went out. I wonder if it is the A/F mixture causing it after the header install?
It hits the Rev limiter in all gears after the header install. It hits it right after the tach goes past the set rpm's
thanks
art
It hits the Rev limiter in all gears after the header install. It hits it right after the tach goes past the set rpm's
thanks
art
TECH Fanatic
Joined: Nov 2001
Posts: 1,695
Likes: 9
From: Raleigh, NC
Re: long tube header problem </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by SilverStreakWS6:
<strong>
It hits the Rev limiter in all gears after the header install. It hits it right after the tach goes past the set rpm's
thanks
art </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Can you explain this some more? Where does it hit the limiter in the RPM range? If it does it in all gears then it is probably not the tack.
Could be:
1. Detonation/ Pinging
2. Bad gas
3. Fouled plugs due to overly rich condition caused by headers
4.Bad plug/wire
<strong>
It hits the Rev limiter in all gears after the header install. It hits it right after the tach goes past the set rpm's
thanks
art </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Can you explain this some more? Where does it hit the limiter in the RPM range? If it does it in all gears then it is probably not the tack.
Could be:
1. Detonation/ Pinging
2. Bad gas
3. Fouled plugs due to overly rich condition caused by headers
4.Bad plug/wire
TECH Addict
Joined: Dec 2001
Posts: 2,298
Likes: 2
From: new england
Re: long tube header problem Also i have gotten DTC1153 and 1154 after header and ORY pipe install. After some investigation it seems exhaust leakage may be the culprit affecting the switching count of O2 sensors and causing codes. Any RTV usage can be suspect also it contaminates O2's. I reccomend installing old o2's after any serious engine work especially head swap. This will protect good sensors that you can reinstall after initial fire up. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
