I have a G-38 that was converted to electronic ignition. I have tested the module on another engine and it works great. How does the electronic unit get grounded to the engine case so the spark will jump the plug gap? Is there any way of testing the hall effect sensor?
The magnet and the gap all seem good, no obvious broken wires. HELP!
Thanks, Denny

the polarity of the magnet or the direction the hall effect sensor isn't correct. that would explain why it works on one engine and not another

the ground for the spark plug comes goes through the spark plug boot

What ignition is it using, Brand name, That will let us know how it needs to be set up.

A picture would help also

Milton

Thanks for the input guys, all ideas are helpful. So far I have done a bit of fault isolation and I believe the hall effect sensor is bad. I found a post on another thread and it said to connect battery power to the ignition unit, run a jumper wire (I used a paperclip) between the black and the white wire and when removing the wire there should be a spark at the spark plug. There was, now its just a matter of isolating the problem to the sensor or the magnet. The magnet has not lost its magnetism, but I have not completely eliminated that as a possibility. I passed a different magnet over the sensor, several different ones as a matter of fact, and it still didnt work. I dont feel the magnet is the problem, but I suspect the sensor.
Does anyone know of a way to troubleshoot a sensor? I assume it has to have power applied to the sensor to get any kind of meter reading on the other lead.
Thanks, Denny

Pull the plug and insert it into the plug cap. Ground the plug to the engine. Turn on the ignition. If you get an immediate spark when the ignition is turned on and no more when turning the prop the sensor is history.

was the engine turned over with the ignition on and the plug not grounded to the ignition unit? i have heard that this condition will fry the sensor

I tested it as Tired said and sure enough, it sparked when I plugged it in and would not spark after that. I traded for the engine and it hasnt worked since I have had it, not sure what happened to the engine before I got it. Thanks for all the help guys, now I need to find a new sensor and get this engine installed in my Mustang or the Avenger,hmmmm, which shall it be?.

Thanks again to all who have contributed to this thread,
Denny

Sensrs can be had at CH and RC Ignitions, along with Bill Jensen engine service.

I ordered and installed a sensor and I have a good spark now, it was the sensor. Thanks to all that helped, I hope this thread is helpful to others.
Denny