Problem after LS6 intake install
Thread Starter
Racer
Joined: Oct 2001
Posts: 255
Likes: 0
From: Helena, AL
Problem after LS6 intake install
I put on a LS6 intake and now my car won't idle. I made sure I have all of the connection correct but when I start it up it jumps to 2000 rpm and then it backs down and stalls if I don't keep my foot on the gas. Is there some sort of relearn process or have I done something wrong? HELP!
Safety Car
Joined: Nov 2003
Posts: 4,550
Likes: 3
From: Houston Texas
relearn
Originally Posted by JBH
I put on a LS6 intake and now my car won't idle. I made sure I have all of the connection correct but when I start it up it jumps to 2000 rpm and then it backs down and stalls if I don't keep my foot on the gas. Is there some sort of relearn process or have I done something wrong? HELP!
1 disconnect throttle postition sensor with car off
2 turn key to on and back off
3 Start car let idle for 5 minutes in drive
4 put in park let idle for 5 minutes
5 turn car off for 30 seconds then restart
This is the idle relearn process and has worked great for me after making changes.
Advanced
Joined: Oct 2004
Posts: 87
Likes: 0
From: nc
Yeah something doesnt sound quite right. I just did mine 2 weeks ago and the tiny vacum hose in the back came out. It was just loud, my car still idled fine. Strange, check everything over a couple more time.
Race Director
Joined: May 2000
Posts: 14,542
Likes: 5
I have had one for years with no problems.
It doesn't sound like idle relearn, it's too great a variance.
Check for leaks, gasket issues, the little wires underneath the manifold issues, everything.
All the best.
It doesn't sound like idle relearn, it's too great a variance.
Check for leaks, gasket issues, the little wires underneath the manifold issues, everything.
All the best.
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Safety Car
Joined: Jan 2001
Posts: 3,879
Likes: 3
From: Hobart, WI
Originally Posted by EHS
I have had one for years with no problems.
It doesn't sound like idle relearn, it's too great a variance.
Check for leaks, gasket issues, the little wires underneath the manifold issues, everything.
All the best.
It doesn't sound like idle relearn, it's too great a variance.
Check for leaks, gasket issues, the little wires underneath the manifold issues, everything.
All the best.
No relearn or tune should be required.
Last edited by see5; Oct 30, 2004 at 08:12 AM.
Race Director
Joined: Jan 2000
Posts: 15,707
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From: Lynnfield MA
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There is a very small vacuum hose that is located between the intake and the firewall. Make sure you have attached this which is a (PITA) or you will have an issue. Just a thought...
Team Owner
Joined: Mar 1999
Posts: 28,753
Likes: 9
From: San Jose/Bear Valley CA
CA Events Coordinator
Originally Posted by davette
Make sure all your vaccum hoses are tight. Sounds like a leak. Idle should really be fine going from a LS1 to the LS6 intake.
VR
Thread Starter
Racer
Joined: Oct 2001
Posts: 255
Likes: 0
From: Helena, AL
It is amazing how much smoother it idles when you connect the hose back to the brake booster. It had gotten wedged down under the master cylinder and I didn't see it. I feel like such a dufus. Going to go get everything buttoned up now, I hope the local cats lick up my antifreeze before it stains the driveway 
Thanks you guys.
Thanks you guys.
I bet the brakes are easier to use too!! 
