Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

running rough after LT install

Thread Tools
 
Search this Thread
 
Old 08-23-2007, 07:37 PM
  #1  
Teching In
Thread Starter
iTrader: (1)
 
joinpa's Avatar
 
Join Date: Jun 2006
Location: Punxsutawney, PA
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
Default running rough after LT install

Just finished installing Pacesetter LTs and TSP catted Y. Went pretty well but car seems to be running rough. No apparent miss, no time tonight for trouble shooting. Anybody want to offer a place to start the search? Is there a wire that is commonly knocked off or something like that. Did recheck the plugs and wire connections and they seemed fine. Rear O2s are gone but understand that won't affect motor. Any help would be great.
Old 08-23-2007, 09:08 PM
  #2  
TECH Enthusiast
iTrader: (4)
 
Numba1Stunna's Avatar
 
Join Date: Dec 2006
Posts: 516
Likes: 0
Received 0 Likes on 0 Posts
Default

ur front o2s could be shot, recheck the plugs, i could be running too rich too
Old 08-23-2007, 09:53 PM
  #3  
TECH Fanatic
iTrader: (12)
 
TheLS1Kid's Avatar
 
Join Date: Oct 2006
Location: Orlando, FL
Posts: 1,724
Likes: 0
Received 0 Likes on 0 Posts

Default

Make sure one of the plugs isn't cracked.

I've done that before on my old 96 Camaro, it ran like crap but didn't throw a SES light so I finally figured out it was a cracked plug.
Old 08-23-2007, 10:08 PM
  #4  
TECH Fanatic
iTrader: (3)
 
'00_Z's Avatar
 
Join Date: Aug 2004
Location: holding down the couch
Posts: 1,458
Received 0 Likes on 0 Posts

Default

Double check the plug wires are on tight. Believe it or not it took us a week to figure it out. #8 is a bitch!
Old 08-23-2007, 10:21 PM
  #5  
On The Tree
 
98TA_vert's Avatar
 
Join Date: Mar 2005
Location: South Jersey
Posts: 156
Likes: 0
Received 0 Likes on 0 Posts
Default

Old 08-23-2007, 11:13 PM
  #6  
12 Second Club
iTrader: (21)
 
95 Z28's Avatar
 
Join Date: Apr 2006
Location: West Seneca, NY
Posts: 1,406
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by TheLS1Kid
Make sure one of the plugs isn't cracked.
+1 ....even a hairline crack can cause problems....other than that, make "sure-sure" all of your plug wires are on properly, you should hear/feel 2 clicks when popping them on.
Old 08-23-2007, 11:52 PM
  #7  
TECH Fanatic
iTrader: (31)
 
tylerdj's Avatar
 
Join Date: Sep 2004
Location: Amarillo, TX
Posts: 1,912
Likes: 0
Received 0 Likes on 0 Posts

Default

Like everyone else said....check all of your plugs for even a tiny crack, this is a very very common problem when people install LT's. If they are all fine then you probably have a problem with your front O2's.
Old 08-23-2007, 11:53 PM
  #8  
TECH Apprentice
iTrader: (1)
 
Boosted 99 TA's Avatar
 
Join Date: Mar 2006
Location: Burton, MI
Posts: 336
Likes: 0
Received 0 Likes on 0 Posts
Default

another guess maybe you bumped your coolant temp sensor when you were gettin the headers up. Just a thought
Old 08-23-2007, 11:57 PM
  #9  
TECH Fanatic
iTrader: (31)
 
tylerdj's Avatar
 
Join Date: Sep 2004
Location: Amarillo, TX
Posts: 1,912
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Boosted 99 TA
another guess maybe you bumped your coolant temp sensor when you were gettin the headers up. Just a thought
Good idea
Old 08-24-2007, 05:11 AM
  #10  
Teching In
Thread Starter
iTrader: (1)
 
joinpa's Avatar
 
Join Date: Jun 2006
Location: Punxsutawney, PA
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the info, I'll start checking tonight. If anyone else has an "i found" please add on. Thanks again this forum is great.




All times are GMT -5. The time now is 05:19 AM.