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Ford Industrial LSG423 - no spark. is 10v too low?

gatorsby7

Well-Known Member
Joined
Dec 28, 2017
Messages
52
Location
dunnellon, fl
Occupation
retired
I have a 1995 Genie Z45/22 with Ford Industrial LSG423. It has the DIS ignition. I have good battery, motor cranks, but no spark. I was trying to diagnose a start then die in a few seconds condition, but now I've lost spark. It has approx 10v at start module, ECM, coil, alternator excite wire, etc Is this too low to trigger a spark? I've been trying to chase the voltage drop, but wiring is difficult to access.
 

TEX32

Active Member
Joined
Feb 5, 2018
Messages
43
Location
Sault Ste Marie, ONT, Canada
Occupation
Owner, Technician @ INTEGRITY HEAVY REPAIR INC.
Unfortunetley, it looks as though you do have a module issue. And these are no longer available. There is an update kit for these.


LRG 423 MODULE - UPDATE KIT (F5JL-12A297-AA)
 

TEX32

Active Member
Joined
Feb 5, 2018
Messages
43
Location
Sault Ste Marie, ONT, Canada
Occupation
Owner, Technician @ INTEGRITY HEAVY REPAIR INC.
To add to the above, low voltage will cause modules to let the smoke out of the box. I wouldn't perform any additional diagnosis until source voltage is at least 12.2v. Remember, 11.7 is considered a dead battery.
 
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