'92 LT-1 - automatic choke sometimes not working
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
'92 LT-1 - automatic choke sometimes not working
Sometimes, when I start my '92, the IDLE sits at 300 - 400 RPM and eventually dies. Looks like in certain weather conditions (very humid days, just after or during rain etc.), the automatic choke doesn't work.. I have to REV the engine up for about 1 - 2 minutes before the idle stabilizes.. It's only temporary and at one point starts working again.. What can cause that condition? Is there some kind of sensor that needs to be replaced?
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Sometimes, when I start my '92, the IDLE sits at 300 - 400 RPM and eventually dies. Looks like in certain weather conditions (very humid days, just after or during rain etc.), the automatic choke doesn't work.. I have to REV the engine up for about 1 - 2 minutes before the idle stabilizes.. It's only temporary and at one point starts working again.. What can cause that condition? Is there some kind of sensor that needs to be replaced?
-- Joe
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
-- Joe
Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
Are there any affordable code readers that I could get myself or does this have to be done at a shop?
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
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From: Fort Knox, KY
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I would start by removing, then cleaning both the throttle body and IAC valve. Both could be simply gummed up with carbon deposits.
You might be able to rent a scan tool from NAPA or AutoZone, Olivier. They used to rent 'em out in my neighborhood store.
You can get an Autoxray EZ Read Model 2500 Code Reader for $150 or less used.
You might be able to rent a scan tool from NAPA or AutoZone, Olivier. They used to rent 'em out in my neighborhood store.
You can get an Autoxray EZ Read Model 2500 Code Reader for $150 or less used.
Last edited by onedef92; Jul 21, 2008 at 12:37 PM.
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
I would start by removing, then cleaning both the throttle body and IAC valve. Both could be simply gummed up with carbon deposits.
You might be able to rent a scan tool from NAPA or AutoZone, Olivier. They used to rent 'em out in my neighborhood store.
You can get an Autoxray EZ Read Model 2500 Code Reader for $150 or less used.
You might be able to rent a scan tool from NAPA or AutoZone, Olivier. They used to rent 'em out in my neighborhood store.
You can get an Autoxray EZ Read Model 2500 Code Reader for $150 or less used.
-- Joe
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Thread Starter
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
I would start by removing, then cleaning both the throttle body and IAC valve. Both could be simply gummed up with carbon deposits.
You might be able to rent a scan tool from NAPA or AutoZone, Olivier. They used to rent 'em out in my neighborhood store.
You can get an Autoxray EZ Read Model 2500 Code Reader for $150 or less used.
You might be able to rent a scan tool from NAPA or AutoZone, Olivier. They used to rent 'em out in my neighborhood store.
You can get an Autoxray EZ Read Model 2500 Code Reader for $150 or less used.
