ignition problem
04-03-2005, 08:46 PM
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Car: 1989 Camaro
Engine: 383
Transmission: 700R4
Axle/Gears: 3.73
ignition problem
My car was running fine when I shut it off but the next time I went to start it I didn't have any fire to the plugs.
I had the module in the distributor checked and it was good, MSD box checked per MSD instructions and it works. I have 12v to the esc but I do not have anything on the wire from the esc to the ecm (pin b7 I think). Oreilly couldn't test the esc module and since a new one was $75 I wanted to post and ask if there was any way to check the esc or anything else I could check.
Thanks for the help
Dewayne
I had the module in the distributor checked and it was good, MSD box checked per MSD instructions and it works. I have 12v to the esc but I do not have anything on the wire from the esc to the ecm (pin b7 I think). Oreilly couldn't test the esc module and since a new one was $75 I wanted to post and ask if there was any way to check the esc or anything else I could check.
Thanks for the help
Dewayne
04-04-2005, 04:44 AM
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Car: 1989 Camaro
Engine: 383
Transmission: 700R4
Axle/Gears: 3.73
The coil is working, The test for the MSD box makes the coil fire. With the key on you take the white wire going from the distributor to the MSD box loose and touch it to a ground and every time you pull it away from the ground it fires the coil. It acts as if its not getting the signal to fire when every thing is connected.
04-04-2005, 08:56 AM
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Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Disconnect the ESC module it isn't required to produce spark.
If you disconnect the Set Timing Connector you'll accomplish the same thing. Unless it's a faulty wiring problem it shouldn't make a difference, that is it still won't fire.
If I'm not mistaken the ECM doesn't take control of the timing until a preset rpm is reached so the ignition system has to provide spark & timing to start the engine before the ECM can take over.
If you disconnect the Set Timing Connector you'll accomplish the same thing. Unless it's a faulty wiring problem it shouldn't make a difference, that is it still won't fire.
If I'm not mistaken the ECM doesn't take control of the timing until a preset rpm is reached so the ignition system has to provide spark & timing to start the engine before the ECM can take over.
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