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 3V. Did not make any difference. So I bought a new MPU from green mountain set to 3V still no change. I am attaching a video maybe someone can listen to the way it runs and tell me what I need to do next. Thought maybe it’s the A5 GCU but before I go that far I would like a second opinion.
youtube.com
Thanks for any input or feedback I definitely appreciate it.
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 3V. Did not make any difference. So I bought a new MPU from green mountain set to 3V still no change. I am attaching a video maybe someone can listen to the way it runs and tell me what I need to do next. Thought maybe it’s the A5 GCU but before I go that far I would like a second opinion.
![youtube.com](https://i.ytimg.com/vi/XecRxCzUtPk/oar2.jpg?sqp=-oaymwEkCJUDENAFSFqQAgHyq4qpAxMIARUAAAAAJQAAyEI9AICiQ3gB&rs=AOn4CLBD7sSjmV9HBYKaqYCpcV-jkbdfsQ)
Mep 804b problem running
Thanks for any input or feedback I definitely appreciate it.