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Just wanted to give a update. I talked to a man who has a tractor that sounded like that and said it was a fuel problem on his. That got me to chasing down that rabbit hole. So I wound up changing out the Woodward controller this took care of the problem. It is running smooth and holding steady...

I have an Mep 804b. It has been running great then all of a sudden it started running bad. The engine is making a funny noise. The frequency is swinging bad. I have changed the fuel filters, oil filter and oil. Did d not help. I thought well maybe it’s the MPU. I checked it and adjusted it to...

Sorry guys I have been out of pocket for awhile. It wound up being the 8270-1096 controller. one of the Tri-ac or SCR on the board had let the smoke out. I found one on ebay for parts. I changed out, and resoldered a new one in. This took care of the problem. I also invested in a new one off...

I have a 804b with yanmar motor. It will crank but will not run. Checked the MPU have 2.5 ac volts while cranking. I have fuel going to injectors but no fuel coming out of injectors.I have checked for voltage on term 9&10 of the GCU no voltage is present. I do have voltage on 3&4 of the GCU. Im...