What would happen?
Thread Starter
Heel & Toe
Joined: Jun 2004
Posts: 16
Likes: 0
From: Winter Springs fl
What would happen?
I was wondering what possible damage would result if by mistake the engine was cranked with the ALDL pins jumped for code readout?
This is a 95 LT1?
I have been trying for months to remedy a no spark condition. I have changed opti, icm, coil, plug and wires. Still no spark. I do remember cranking the engine once with the pins jumped.
I do have the reference voltage at the opti, I do have voltage to the coil. I don't know where to look next? I should mention I am trying to start the engine "briefly" without the waterpump on yet. To make sure the opti replacement was a sucess. I do have the shop manuals. And have read an reread everything I can think of related to the no spark condition.
Here is the million dollar question....Is there anyway to check while cranking the engine (without a tech 1 or ocilliscope) for the low res, and high res, pulses from the opti?
Thanks for your input
Dave
This is a 95 LT1?
I have been trying for months to remedy a no spark condition. I have changed opti, icm, coil, plug and wires. Still no spark. I do remember cranking the engine once with the pins jumped.
I do have the reference voltage at the opti, I do have voltage to the coil. I don't know where to look next? I should mention I am trying to start the engine "briefly" without the waterpump on yet. To make sure the opti replacement was a sucess. I do have the shop manuals. And have read an reread everything I can think of related to the no spark condition.
Here is the million dollar question....Is there anyway to check while cranking the engine (without a tech 1 or ocilliscope) for the low res, and high res, pulses from the opti?
Thanks for your input
Dave
