View Full Version : Wiring diagram, PS190 1995.

09-20-2006, 06:35 AM

where I could find wiring (/circuit) diagram for my MC PS 190, 1995, EFI?
Or circuit diagram for the ECM?

There is a problem, engine not firing up.
Ref. http://www.tmcowners.com/teamtalk/showthread.php?t=11832

09-20-2006, 06:38 AM
If your getting spark and gas and still nothing might be time to check compression of engine. Does engine try to start?

09-21-2006, 07:56 AM

I got news from the repairement shop that the problem is the computer.
Scanner did not show any error code.
Engine turns, gets spark, just no fuel from the injectors, so no signal to injectors.

09-21-2006, 08:31 AM
check the fuse for the fuel pump, I know this sounds cheesy but sometimes the KISS system works - keep it simple stupid

09-21-2006, 10:13 AM
Just to inform what has been done.

Mercruiser scanner: no trouble codes.

Injector test gives no pulse to injectors
All + and - cables are checked
Currents have been tested by grounding ecm connector: injector works.
Extra grounding to ecm injector ground connector: does not help.
ECM numbers I got now:

Actual number: 16189069

Barcode number: 869069KA00006992

So where to find used and cheap ecm?