96 175 EFI Voltage regulators

[k love]

0G425296

I had a bad ECU and replaced it, the boat ran good until the end of the 3rd trip. Now it will not go above 4000rmp's and will cut off at idle.
I do have a burnt connector between the voltage regulator and stator (stator is new). Do I have bad voltage regulators? is there a way to test them?
I did replace them several years ago for a different problem.

any help would be appreciated, I have been fighting with this motor for a while.

[EuropeanAM]

Check the ECU and the Cannon Plug Connectors for dirty pins, poor connection, or not properly locked/strapped in place.

If you have a browned/blackened/burnt connector for the regulators, there is a problem there. Normal protocol (recommended) is to replace any damaged connectors and BOTH regulators.

Note: Most regulator/connector problems are due to battery or battery connection problems.

[Haughton]

Like Don said, make sure battery connections are tight and correct hardware.

Buy locking nuts with the nylon inserts, throw away the wing nuts. Clean battery post/threads and place your largest connection first, then smallestest last. Pre-thread locking nut on a bolt before using on battery connection so you dont stress the post too much. If your changing regulators, use a wire brush to clean the grounds, I used a dremel with a soft brush, cover with a liquid tape. Motor is old so cleaning all the grounds around your motor would be good.

[k love]

It's fixed, I had a bad connection on the ECU plug.
Thanks for the help.