Car revs high on initial startup ???
Thread Starter
TECH Resident
Joined: Mar 2012
Posts: 821
Likes: 4
From: Elkridge MD
Car revs high on initial startup ??? Ok, I wasn't there when the guy doing the wiring started the car for the first time. He says it wouldn't idle, and revved really high at start up....so he shut it off. I know the throttlebody is working properly (at least it is held closed by the spring). Gas pedal is not causing a problem.
Anyone have an idea what would cause that?
Anyone have an idea what would cause that?
Thread Starter
TECH Resident
Joined: Mar 2012
Posts: 821
Likes: 4
From: Elkridge MD
Did I do that wrong?
Also, is this an IAC motor? THe little sensor on the top driver side of the TB?
http://www.1aauto.com/1A/IdleAirCont...Fcuh4AodjjEA8Q
I looked for open vacuum ports. I don't THINK there's anything I am missing. I have an LS1 intake, and there are 2 ports at the rear, one for brakes, the other I capped. There are 2 at the front on the throttlebody. The LS1 intake is different than the truck intake. The LS1 intake has its own ports built into it BEHIND the throttlebody. I plugged the two small ports at the bottom of the TB and hooked up the ones on the intake to the appropriate lines (I assume)
Did I do that wrong?
Also, is this an IAC motor? THe little sensor on the top driver side of the TB?
http://www.1aauto.com/1A/IdleAirCont...Fcuh4AodjjEA8Q
Did I do that wrong?
Also, is this an IAC motor? THe little sensor on the top driver side of the TB?
http://www.1aauto.com/1A/IdleAirCont...Fcuh4AodjjEA8Q
If you don't have an obvious vacuum leak, the IAC could be bad. When mine died it also threw a code. I just prefer trying things that don't cost money first.
Yes it is the little sensor with a metal band.
Launching!
Joined: May 2012
Posts: 218
Likes: 0
From: Arlington, Tx
Mine did that. I turned it off and started it back up a couple times and it finally idled back down. I thought it was just doing its thing. Haven't happend again. It's only done it twice. Once I had started it without the maf. Then it did it after I installed the MAf. Then after I took the harness out and re-did some wires that I pinched. After that, no problem.
