I dont have said Rinda Scan tool. Where do I find one of these?

I was busting your chops. Rinda scan tools prove invaluable to diagnose and check functions. Owning Merc race engines its a must have to avoid down time. Think of it as an OBD 2 scan tool for the water. http://www.rinda.com/techmatepro/

I may have to scoop one of these. Any pricing on them? Can i get a used on cheap.. Looks like it does the same thing my smart craft is already doing..

Also did you read about my RPM's not being in sync. Is that something that could be caused by impeller as well?

Ttt

If you have repeatedly put the motor into Guardian, it may now be at a reduced % power level until the codes are cleared from the ECM and it shows 100% power available on the scan tool.

Be careful with relying on temp and pressure gauges to indicate water flow. When mine got plugged up there was no indication of a problem on the water temp or pressure gauges.

there are numerous issues with this, there is a re-route on the intercooler cooling with a upgrade from whipple, my suggestion would be call them and see what they have come up with on this, have friends that have the same issues with these engines

I did the water re-route from whipple. Made a huge difference in the headers keeping colder. Im going to guess this is the Impeller, and ill have it changed today. I will update with results

Do you know if once the water flow problem is fixed the ECM will clear itself of the codes, or do you have to have the scanner

Ok so I put a new impeller assembly in. We flushed out all the water lines, and we are still getting low H20 on the engine. Can somebody inform me on where the H20 sensor is located so I can swap them from engine to engine to see if that's the problem? Thanks