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JetCat P70 no propane flow during startup

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JetCat P70 no propane flow during startup

Old 05-14-2024, 10:25 AM
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Default JetCat P70 no propane flow during startup

I have a JetCat P70 that I have not started in a number of months. It is propane start and the last time I ran it, it started with no issues. I checked the glow plug which looks fine. I then disconnected the coupler after the gas valve and there is no propane flowing during the startup sequence. How do I test the valve and is there some
other troubleshooting or setup process I am missing. A new valve is $70+ so I dont want to purchase if that is not the issue. TIA.
Old 05-14-2024, 02:13 PM
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Do you hear clicking from each of the valves? They normally click pulsate.


Last edited by ledd4u; 05-14-2024 at 02:18 PM.
Old 05-15-2024, 03:29 PM
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Remove and insert the gas valve plug in & out of the ecu a couple times , possible contact issue
In fact it wouldn't hurt to wiggle all the plugs to ensure good contact in the ecu
Old 05-15-2024, 04:07 PM
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You can switch it with the fuel valve to prove it out
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Old 05-15-2024, 04:48 PM
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Had an issue with Wren solenoids on an engine that had been out of service for a while, both solenoids not working.
Found I had to resolder both connections at the solenoid end, not sure why, it wasn't crash damage. All fixed now.
Old 05-16-2024, 08:29 AM
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You can take the valve and plug it in to a servo driver to test. It might just be stuck. Can heat the valve with a mono coat iron while exercising it with the driver while blowing air through the line. Dan
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