high idle
Mar 8, 2009 | 06:55 PM
Thread Starter
Intermediate
Joined: Jan 2008
Posts: 48
Likes: 0
From: Staten Island New York
high idle
1993 LT-1 idles at 1100 rpm when hot or cold from start up. Could it be a vacuum hose?
Mar 8, 2009 | 08:02 PM
Racer
Joined: Jul 2001
Posts: 359
Likes: 0
From: Russellville TN
St. Jude Donor '06
Verify your car is going into closed-loop when warmed-up. Use a OBD1 scan tool for this. Let us know what you find.
Frank
Mar 9, 2009 | 10:21 AM
Thread Starter
Intermediate
Joined: Jan 2008
Posts: 48
Likes: 0
From: Staten Island New York
Thanks but you are talking over my head. I don't have a scan tool, nor do I know how to use one. Guess I'll have to bring it for service.
Mar 17, 2009 | 12:49 PM
Burning Brakes
Joined: Oct 2008
Posts: 1,091
Likes: 45
From: Albuquerque New Mexico
Seems like if i set my timing around 6/8 BTDC than it will accelerate no problem, but the idle after warming up is a bit up and down. Now if i turn the distributor clockwise it lowers my timing, get a nice idle, but when i "punch" the gas i get a little hesitation, which just drives me nuts. Any suggestions????
Mar 18, 2009 | 06:15 AM
Safety Car
Joined: May 2002
Posts: 4,659
Likes: 82
From: Toronto ontario
Im confused. is the above post a reply to the original post or a question in someone elses post ?
Mar 19, 2009 | 01:03 AM
Burning Brakes
Joined: Oct 2008
Posts: 1,091
Likes: 45
From: Albuquerque New Mexico
well, it's another idle problem......
Mar 19, 2009 | 03:52 AM
Racer
Joined: Aug 2006
Posts: 442
Likes: 0
From: Albany Oregon
Don't feel bad. If it's anything like my
thread it won't even get any lookers. Oh well, I'll just try the OBD1 thing.
Mar 19, 2009 | 03:53 AM
Racer
Joined: Aug 2006
Posts: 442
Likes: 0
From: Albany Oregon
Quote:
Originally Posted by
Corvette86
Verify your car is going into closed-loop when warmed-up. Use a OBD1 scan tool for this. Let us know what you find.
Frank
What does it mean if it doesn't go into closed loop?
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Mar 19, 2009 | 04:31 PM
Race Director
Joined: Apr 2003
Posts: 17,698
Likes: 1,667
From: moraga ca
Maybe your throttle blades have for some reason opened up too much. Maybe lower the throttle blade opening adjustment 1/2 to 3/4 or a turn to see it this helps.
