1993 5.0 OMC Cobra.
I'm trying to get my ESA working; installed a new CDI module today with no luck, and now my tach isn't working... I'm wondering if perhaps I have the ESA wire on the wrong side of the ignition coil and it somehow damaged the tach (I know that the ESA and tach wiring inter-mingle).
What wires should be on the positive side of the ignition coil, and what wires should be on the negative side?
I think I've got 3 wires on the positive side; the purple wire from the distributor, the purple wire from the engine harness, and a gray/black from the engine harness.
On the negative side, I think I just have the black ground wire from the distributor.
Is this right?
After some reading, it sounds as though that gray/black wire is the ESA and tach wire, and it should be on the negative side of the coil.
Would my tach have been working if it was on the positive instead of the negative side of the coil?
Does it make sense that installing a new ESA module could have damaged the tach?
Any input is appreciated,
Thanks.
I'm trying to get my ESA working; installed a new CDI module today with no luck, and now my tach isn't working... I'm wondering if perhaps I have the ESA wire on the wrong side of the ignition coil and it somehow damaged the tach (I know that the ESA and tach wiring inter-mingle).
What wires should be on the positive side of the ignition coil, and what wires should be on the negative side?
I think I've got 3 wires on the positive side; the purple wire from the distributor, the purple wire from the engine harness, and a gray/black from the engine harness.
On the negative side, I think I just have the black ground wire from the distributor.
Is this right?
After some reading, it sounds as though that gray/black wire is the ESA and tach wire, and it should be on the negative side of the coil.
Would my tach have been working if it was on the positive instead of the negative side of the coil?
Does it make sense that installing a new ESA module could have damaged the tach?
Any input is appreciated,
Thanks.
