LS6 Throttle Body Tuning
Thread Starter
Launching!
Joined: Aug 2008
Posts: 281
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From: San Diego Ca
LS6 Throttle Body Tuning Tossed a Jantzer Performance throttle body on my basically stock LS6 and Ive noticed the car is driving itself, downrevs slowly but returns to a normal idle, so the throttle position needs to be reset I assume. Does anyone have experience tuning this out?
Should probably also note that the car is more prone to maintaining speed when the air conditioning is on.
Should probably also note that the car is more prone to maintaining speed when the air conditioning is on.
Last edited by Cts-Voodoo; Oct 12, 2008 at 10:38 PM.
Could be lots of things...
-TPS not reset after new TB
-Wrong IAC Area settings in tune
-Wrong settings for Desired Airflow at Idle
-If is seems to run on cruisecontrol by itself, your Throttle Follower and possible Throttle Cracker tables may need tweaking for the new TB.
-Your new TB could be letting more air past the blade because of a throttle stop or adjustment screw setting, thus a low IAC Step count.
First thing I would do is reset the TPS. Then pull off the bellows and look at the throttle blade. You should see almost no airgap between the blade and the bottom of the TB throat. If you can easily see a gap, then you may need to back off the throttle stop screw. Then, you must reset the TPS again. The rest of the stuff requires tuning software.
-TPS not reset after new TB
-Wrong IAC Area settings in tune
-Wrong settings for Desired Airflow at Idle
-If is seems to run on cruisecontrol by itself, your Throttle Follower and possible Throttle Cracker tables may need tweaking for the new TB.
-Your new TB could be letting more air past the blade because of a throttle stop or adjustment screw setting, thus a low IAC Step count.
First thing I would do is reset the TPS. Then pull off the bellows and look at the throttle blade. You should see almost no airgap between the blade and the bottom of the TB throat. If you can easily see a gap, then you may need to back off the throttle stop screw. Then, you must reset the TPS again. The rest of the stuff requires tuning software.
