93 LT1 Idles @ 1800
11-30-2009, 10:06 PM
#1
93 LT1 Idles @ 1800 I've got a 93 Lt1 in my '77 Volvo 244. It has been idling at 1800 rpm and I can't figure out why. I have tried reseting the IAC, checked for vacuum leaks, and made sure the TPS is reading right. Does anyone have an idea of what to check next?
12-01-2009, 08:33 AM
#4
Vacuum leak? (specifically, the brake booster or one of the larger lines on the TB unplugged?)
Are there any other things to look for?
12-01-2009, 08:40 AM
#5
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It sounds like you put a bigger throttle body on recently. Mine did the same thing until I twisted the IAC toward the front of the motor so far the the top screw actually sits behind the IAC. This set the idle down to about 850-900rpm.
12-01-2009, 10:02 AM
#6
It's actually all stock execept for the exhaust.
Could you explain this a little more? I've never had the IAC out and don't really follow.
I twisted the IAC toward the front of the motor so far the the top screw actually sits behind the IAC.
12-01-2009, 11:12 AM
#7
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http://www.ls1lt1.com/forum/showthre...ight=high+idle
try that... it may answer a question.
I have found that ls1lt1.com is the BEST lt1 advice you can get.
try that... it may answer a question.
I have found that ls1lt1.com is the BEST lt1 advice you can get.
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12-01-2009, 11:17 AM
#8
Last LT1 I bought for a retrofit did the same thing. After two weeks of looking for vacuum leaks and wiring problems, I realized someone had put the throttle body on (before I purchased the engine) without a throttle body gasket. You may want to double check.
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12-02-2009, 09:21 AM
#9
Last LT1 I bought for a retrofit did the same thing. After two weeks of looking for vacuum leaks and wiring problems, I realized someone had put the throttle body on (before I purchased the engine) without a throttle body gasket. You may want to double check.
