not the iac. now what?
#1
Member
Thread Starter
Join Date: May 2008
Location: Mishawaka, IN
Posts: 110
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: limited slip
not the iac. now what?
Sometimes when I drive it and it warms up and come up to a red light it will sit at 500 rpms and outta nowhere it dropps below 500 then jumps to about 700 then goes back to 500.It would do that about 5 times then stop. Its gettin on my nerves because the whole car jumps when this is happening. Its doing it more frequently now. I cleaned the iac valve, checked it etc. Its the l03 tbi. It only does it at lights.
#2
Junior Member
Join Date: May 2009
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Firebird
Engine: 2.8 V6
Transmission: 5 Speed
Re: not the iac. now what?
I had a problem with the EGR valve sticking that would cause this type of problem. It would run fine cold, then after about 5 minutes or so, when I would stop to idle, it would bounce around. I plugged the vacuum line going to the EGR just to test it and it went away. Replaced the valve, now it's perfect. Hope this helps.
#3
Member
Thread Starter
Join Date: May 2008
Location: Mishawaka, IN
Posts: 110
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: limited slip
Re: not the iac. now what?
Would it hurt to just delete the egr? I was gonna take it off anyways. I heard that if you do the car will run either lean or rich. I just wanna be safe before I take that kinda stuff off. I will definately check it out though.
#4
Junior Member
Join Date: May 2009
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Firebird
Engine: 2.8 V6
Transmission: 5 Speed
Re: not the iac. now what?
i have heard it decreases gas mileage. I ran without it for about a month and didn't notice anything different. Just remember if you do, make sure to plug the vacuum line or it may throw a code.
#5
Member
Thread Starter
Join Date: May 2008
Location: Mishawaka, IN
Posts: 110
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: limited slip
Re: not the iac. now what?
i plugged the line and it stopped jumping at lights and I noticed a huge power difference. Its got alot more top end power. So its gonna come off. I just need to fabricate a nice resrictor plate.
Thread
Thread Starter
Forum
Replies
Last Post