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Discussion Starter · #1 ·
Hi all, combine was starting great yesterday, and this morning. Now engine cranks but shut off stays on so it won't start. I have the alarm in my display.

Pto lube low pressure
Ecu not found

Disconnected Ecu and plugged it back with not success. Connectors looked great. Unplugged moste of the connectors and they were fine

Unplug battery and plug it back.

Any other ideas?

Thanks!
 

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Had an issue similar to this with a NH CR 970. If the voltage was slightly low the monitor would through up a voting differences warning related to the ECU. Engine would crank just fine but would not let her start. Add in a battery charger and away we went. Would happen every morning until I installed new batteries.
 

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first check both battery.2, check power pin 2-3-8-9 (12v)and ground pin 5-6-10-11 to the ecu connector when you start,3 check pin 40 at the ecu connector 12 volts . we saw a 8120 make the same problem last week ecu does not comunicate and pto lube was low, and the problem was a connector near to the engine. make sure that the combine crank over 150 rpm, the ground location 5 was near the pto
 

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Discussion Starter · #5 ·
Ok good to know. Mechanic came last week all day without finding anything. Finally it started at the end of the day with no reason... Works good since then. I'll take a look at the ground if it happens again. They wanted me to put a new Ecu but I doupt it is my problem
 

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Years ago my alternator produced less and less volt , I wanted to finish did not make it ECU got toasted $$$ - $$$
 
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