I know this has been brought up before but here is my problem. After cleaning all the terminals (even the ones under the Ecm, and all the connections and changing the fuel filter this problem occurs. Alarm horn goes to steady blast if I hesitate on the on position with the key in the control box. If I quickly turn the key from off to start it starts most every time. Cold, or warmed up. I also have my oil tank almost full. If I hesitate on the on position engine will not turn over. After that I have to wait about 5 minutes and it will start up. And when it starts it runs fine. Temperature at the heads is between 138 and 150 F. Checked with an infrared meter. Any further help will be appreciated. I want to make sure I'm not overlooking something before i invest in another ECM. Thank you.