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Thread: LT1 Optispark/timing issues
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01-09-2011 #15
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- Aug 2004
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well, the intake valves don't need to be open if the IAC is working. What I would try though is cracking the throttle body open just a hair and see what happens. You can use your hand or use your foot from the driver's seat. At this point, you need to do something that causes a change even if it doesn't start. If it's a repeatable change that's even better.
Trey
"The early bird may get the worm, but the second mouse gets the cheese."
~ Jon Hammond
1979 WS6 Trans Am stock LT1/T56 drive train out of my Formula. BMW M-parallel rims. C5/C6 brakes
build thread https://www.pro-touring.com/showthre...ghlight=begins
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