Needing some help here

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Oct 27, 2004 | 05:54 AM

Denunzio36

Thread Starter

Joined: Oct 2004

Posts: 41

Needing some help here

After changing out the Idle air control, adjusting my TPS to .98 volts, my car's idle still comes down way too slow. Could my TPS be a bad one or what.?I think that there's something else that is the problem here. I need any and all possibilities why this problem is still haunting me. Thanks guys

Oct 27, 2004 | 10:11 AM

90GTRagtop

2nd Gear Member

Joined: Sep 2004

Posts: 394

RE: Needing some help here

How slow is it idling? Is the throttle body dirty? (you can open the butterlfy valve with the engine off and look into it after disconnecting the breather hose) If there are no other problems and it's slower than you want, you could always consider adjusting the idle screw. What year is your ride?

Oct 27, 2004 | 11:35 AM

4fit?

4th Gear Member

Joined: Oct 2004

Posts: 1,472

From: Graham, NC

RE: Needing some help here

Quote:

ORIGINAL: 90GTRagtop

How slow is it idling? Is the throttle body dirty? (you can open the butterlfy valve with the engine off and look into it after disconnecting the breather hose) If there are no other problems and it's slower than you want, you could always consider adjusting the idle screw. What year is your ride?

Yep, I would adjust the idle screw. I had to do that when I changed out my tb, tps, and iac.

Oct 27, 2004 | 12:23 PM

cammedlx

5th Gear Member

Joined: Jul 2004

Posts: 2,055

From: North Cacalaky

RE: Needing some help here

if that don't work try cleaning out your iac with some carb cleaner,if that fix's it replace the iac valve

Oct 27, 2004 | 02:05 PM

Denunzio36

Thread Starter

Joined: Oct 2004

Posts: 41

RE: Needing some help here

It idles fine once it's stopped. The problem I am having is in between shifts. When I push the clutch in, the rpms come down extremely slow. the car won't come to a complete idle until it is fully stopped. It's very strange. I have a brand new idle air control, so this is not the problem.

Oct 27, 2004 | 02:09 PM

roundman

5th Gear Member

Joined: Mar 2004

Posts: 4,813

From:

RE: Needing some help here

check the vehicle speed sensor (VSS) as this has lots to do with how the engine runs when you let off of the gas.

Oct 27, 2004 | 02:19 PM

Denunzio36

Thread Starter

Joined: Oct 2004

Posts: 41

RE: Needing some help here

Where can I find this sensor on my 95 GT? and is there any way of testing it to make sure it is bad before I consider replacing it?

Oct 27, 2004 | 02:28 PM

roundman

5th Gear Member

Joined: Mar 2004

Posts: 4,813

From:

RE: Needing some help here

not sure if the 95 model uses one for sure, but if it does it will be mounted on the transmission somewhere. don't have clue how to test it though.

Nov 2, 2004 | 11:55 AM

Denunzio36

Thread Starter

Joined: Oct 2004

Posts: 41

RE: Needing some help here

I have checked all of the above....could my ECU be bad or be contributing to the problem of all of this. I am starting to think it is

Nov 2, 2004 | 03:04 PM

#10

88GT40

2nd Gear Member

Joined: Oct 2004

Posts: 450

From:

RE: Needing some help here

what is your timing set at. you could try bumping it up and use higher grade gas... this should give more power and should make the rpms drop off a little faster too.. jus an idea