LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

still more LT1 problems!

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Old 07-14-2008, 08:07 PM
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still more LT1 problems!

in the 97.. replaced bent valves timing set ect... before we replaced the valves we thought it was just the timing set, after i replaced it car started and idled, it ran like crap but still ran. I then discovered 3 bent valves only on 1 side (drivers) removed head and had valves replaced at a machine shop. installed the head plugged everything back in and had no spark. replaced the ICM and the coil, also just did the opti test and everything checks out. i also tried another computer also still no spark. what the heck could i be missing?
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Old 07-14-2008, 08:14 PM
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Did you get any spark from the opti to the coil?
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Old 07-14-2008, 10:37 PM
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Originally Posted by seawolf06
Did you get any spark from the opti to the coil?
From the opti TO the coil? I thought it went from the coil to the opti? (no I am not being a smart-A)

Sounds like you need to recheck your connections. I bet you forgot to plug something in.
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Old 07-15-2008, 05:16 AM
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coil is not fireing, but im getting a signal to the ICM. this is frustrating.
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Old 07-15-2008, 08:18 AM
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Originally Posted by tlillard23
From the opti TO the coil? I thought it went from the coil to the opti? (no I am not being a smart-A)

Sounds like you need to recheck your connections. I bet you forgot to plug something in.
Between the two, my bad.

Try changing to another coil. I received one from MSD that was DOA. They're all made the same exact way, so get the cheapest one you can find that isn't reman.
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Old 07-15-2008, 01:52 PM
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ill have to do a test on the coil, it is brand new if its DOA ill be hot!
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Old 07-15-2008, 10:03 PM
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got the car started! the optispark was bad... sortof, the opti guts where very very coroded, so i put my spare on and she fired right up! now to change the oil like 3 times to make sure theres no water in the oil!
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