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Message: <blockquote data-quote="V65ozzie" data-source="post: 97569" data-attributes="member: 12104"><p>I'll update. Discovered that the fuel pump was not pumping enough fuel, replaced with a known good one. (Evidenced by the fact I noticed the motor slowing and almost "misfiring")Same issue. Oil pressure switch was leaking a little, replaced with a new one. Same issue. Followed the testing procedure for the ASM controller. Discovered an intermittent low voltage feed to the controller. Below 4 volts the controller drops the signals for OP and temp, forcing a shutdown. A little digging turned up a burned connector on the feed. A wiggle test showed this to be the culprit, bypassed the feed with a new 10ga feed, fired it up, and it ran for 2 1/2 hours yesterday. Fired it up this morning, ran for 45 min, and shut down. Low oil pressure. Refired and 5 min later it shut down, this time no warning lights, and no restart. Pulled the controller panel checked feed voltage, 13.5 volts. Tested controller according to the flow chart, No FS voltage, supposed to be 12, No crank voltage, supposed to be 12. Fuel pump not running, glow plugs not powered up. According to the manual, if I have voltage across 8 to 4(Manual start to ground) and any of the others do not have the prescribed voltage, the controller is suspect. So now I begin the search for the controller, which, as is usually the case, is not available. Currently have a call in to the original manufacturer, who say they may possibly have one in the UK, but will have to check with them when they are open.... The controller has a feature that ignores low oil pressure at startup on this model. I'm going to go check the start switch right now, thanks for that idea. It's a simple toggle, one way manual start, one way auto start. I did find a bad toggle for the panel lights the other day, and they have both been in there since new.</p></blockquote><p></p>

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