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Old 11-23-2010, 05:41 PM
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Paul Buxe Paul Buxe is offline
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Re: LS2 engine swap wont start - help


The problem is that I am not getting any spark at any of the cylinders.
To trouble shoot, I have replaced both the cam and crank sensors (gray).
I am getting 12 volts to the MSD box.
I am getting 12 volts to the coils.
I am getting 5 volts to both sensors.
I have the step retard unhooked.
I have the MAP unhooked.
When I crank the engine, with or without the spark plugs, I do not get a tachometer reading on the lap top. Engine is turning over at a good speed.
I also get a “no crank signal” on the lap top. This is why I replaced both sensors.
I am getting ~ 4.5 volts return from the cam sensor. (using a multi meter, so don’t know how good that volt value really is) back to the box.
I am getting ~1.3 volts return from the crank sensor. (using a multi meter, so don’t know how good that volt value really is) back to the box.
I am only getting ~0.05 volts to the coil packs to fire the coil from the box (using a multi meter, so don’t know how good that volt value really is)
So, I’m stumped. The box is new, but can it be bad?
What else would you suggest?
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