10-19-2009, 02:49 PM
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Join Date: Mar 2000 Location: Littleton, CO USA
Posts: 39,562
Car: 82 Berlinetta(2)/57 Bel Air Engine: LS1 (LS1)/LQ4 Transmission: 4L60E (T56)/4L80E Axle/Gears: 10B 3.73(9" 4.11)/8.2" 4.11 | What air cleaner is on the car? If open element, that is what is causing your off-idle hesitation. You need the thermovac system on the stock-type air cleaner snorkel to provide warmed air to the engine. Unless this is a non-computer Canadian car, it's hard to tune this out of the system without the thermovac system operational.
For your WOT issue (commonly called "bog"), it's the secondary air valve (AV) opening too soon. Two things control this: 1) the choke pull-off ("vacuum break" in the factory nomenclature); and 2) the AV tension adjustment. There is a tech article linked from the "welcome to the carb forum" sticky and the TGO home page on how to adjust this. The choke pull-off is best tested with a hand-held vacuum pump - if it doesn't pull in with vacuum, and hold in without continued pumping, it's bad and should be replaced.
Your high idle issue is something sticking, either the throttle cable, carb throttle arm, or the choke mechanism. |
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