Just replaced lim on my 04 comp g. I found a broken vacuum plug, not sure where it came from. I think it may be the t under the supercharger, it's old, but I can take the line that runs out of it and it still has vacuum. I'm thinking it may be losing some vacuum, but not enough to make it so the car doesn't run. It will start for a few minutes, throttle doesn't work, then I get a reduced engine power in my display and car shuts off. I'm wondering if maybe the vacuum plug I found maybe needs to be hooked up somewhere but the vac line diagrams don't really show where any plugs should go. I am replacing the vacuum t real soon but just think it could be more than that. Any ideas? Car ran great prior to intake gasket change.
Just changed lim, reduced power on display center
- Thread starter Prd2010
- Start date
Fivefingerdeathpunch
New member
Clear the check engine code, it's got to have one if it's going into reduce power mode.
I'd even unplug the throttle body and make no pins are bent or damaged and plug it back in. Then fix the vacuum line and see if it runs better.
Post pictures of the plug or line you are talking about, we may know it goes.
I'd even unplug the throttle body and make no pins are bent or damaged and plug it back in. Then fix the vacuum line and see if it runs better.
Post pictures of the plug or line you are talking about, we may know it goes.
Fivefingerdeathpunch
New member
One side has a vacuum line going to it, the other is suppose to be open. The little foam piece on it always falls off.