LS1TECH - View Single Post - finally got my LS1 started!!! strange prob though...

demonpixel · 09-28-2009, 01:51 PM

I sprayed carb cleaner at potential leak spots; it did nothing to the idle. I did however, manage to lower the idle to just under 1000 by taking the throttle body idle screw almost all the way down. But, in order to start the car, I have to put my foot on the accelerator.

So I talked to TSP since they're the ones that did my pcm tune (and my cam). They said that the hole in the throttle body that I have should probably be a little bigger because what that will do is allow more air to come in on startup, but the idle should stay the same, since the pcm reads throttle position to determine how much gas to give the engine (throttle position among other things).

So it looks like I have a little drilling to do. What do you guys think?

09-28-2009, 01:51 PM	#6
demonpixel TECH Enthusiast Trader Rating: 12 Join Date: Jun 2005 Location: Houston, TX Posts: 538	small update I sprayed carb cleaner at potential leak spots; it did nothing to the idle. I did however, manage to lower the idle to just under 1000 by taking the throttle body idle screw almost all the way down. But, in order to start the car, I have to put my foot on the accelerator. So I talked to TSP since they're the ones that did my pcm tune (and my cam). They said that the hole in the throttle body that I have should probably be a little bigger because what that will do is allow more air to come in on startup, but the idle should stay the same, since the pcm reads throttle position to determine how much gas to give the engine (throttle position among other things). So it looks like I have a little drilling to do. What do you guys think?