This is a discussion on Now What within the Computer & Tuning forums, part of the LSx Technical Help Section category; pulling heat bank codes. car feels being held back. performance shop says im running lean. but don't work on ls1's. ...
05-20-2007, 08:33 AM #1
- Join Date
- May 2007
- east coast
- 2001 formula
pulling heat bank codes.
car feels being held back.
performance shop says im running lean. but don't work on ls1's.
gm runs ls1's lean from factory.
more mods the more leaner it becomes.
and the slower my 1/4 mile times get.
mods-- headers, programed,intake upgrades.
so now what?
1.fuel pump upgrade
2.fuel pressure regulator
05-20-2007, 09:46 AM #2
- Join Date
- Aug 2005
- Old Bridge "Raceway Park" N.J.
- 2009 Corvette ZO6
Did you clear the codes that were set after the install....?
Originally Posted by realbadniceguy
05-20-2007, 10:24 AM #3
don't know of heat bank codes. can you list the codes?
05-21-2007, 01:54 AM #4
ls1's come rich from the factory
what programmer are you running?
I would have to dig around and make sure but the O2 heater codes could be keeping you in open loop. Do you have a means to log the car to see where it's running or are you just guessing you're lean? I would say get a good tune in there and that'll fix your problems.
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