throttle issue?
Thread Starter
Member
Joined: May 2009
Posts: 327
Likes: 0
From: Houma, LA
Car: 1990 camaro rs
Engine: 305 tbi
Transmission: 700R4
Axle/Gears: 2.73
throttle issue?
ok so i got an 90rs, 305 tbi, you know the deal...when I drive the car and look at the rpm its reading around 3-400 at a stop and it feels like its going to die but never does. The fuel pump was just replaced and everything is connected correctly. My question is does the car naturally idle this low...and if not could this be the injectors? or throttle position sensor?
thanks tim
thanks tim
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 12
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Idle Chatter
Have you scanned it for codes?
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Happy Racing!
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Happy Racing!
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Make Noise, Turn Left, Repeat
Make Noise, Turn Left, Repeat
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 12
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Idle Chatter
A contaminated oxygen sensor can cause low idle.
I would look at it.
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Happy Racing!
I would look at it.
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Happy Racing!
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If People Drove Any Slower They’d Be Going Backwards
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If People Drove Any Slower They’d Be Going Backwards.
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Junior Member
Joined: Feb 2010
Posts: 6
Likes: 0
From: N. Chas SC
Car: 1992 RS
Engine: 305 TBI
Transmission: 4L60
Axle/Gears: 2.77
Re: Idle Chatter
how low do it it ider at a stop is it a autoM if a AutoM i ider at 750 rpm a manel is the same i think check your ICV see if if dirt maybe time for a tbi Cleaning
Thread Starter
Member
Joined: May 2009
Posts: 327
Likes: 0
From: Houma, LA
Car: 1990 camaro rs
Engine: 305 tbi
Transmission: 700R4
Axle/Gears: 2.73
Re: Idle Chatter
well I just replaced that, so I dont think thats the problem but you never know, and idles around 300-500 at a stop while in drive, and what is an autoM
Re: Idle Chatter
idle is controled by a metered vac leak. the iac valve needs to be looked at to see if it functions properly. you can see it by looking down the TBI unit. jumper the ALDL and you can cycle it with ign on engine off. It may be sticking or stuck closed.
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