MR1 ECU?

[betterwhenitswetter]

UPDATE:
I posted in another thread about water/fluid in the engine, turns out its actually fuel in the engine b/c water got in the ECU and has caused havoc to the system, the water got there b/c my brother left the flush valve cap open (waverunner not boat) and water found its way into the ECU box, new ECU and wiring harness and 1 switch and 1 relay, about $2,000 dollars later (I bought 4 new injectors) so total of $2,600

thread here, https://jetboaters.net/threads/mr1-engine-help-cylinder-3-has-water.10138/

Moral of the story check you Environmental box first for water. I will post pics when I can.


MR-1 ECU (I have a OEM NEW ECU) during the swap, is it possible to add the hours from the old ECU to the new ECU?

I have Yamaha YDS diagnosis Software & DB 1.33v, I can view all data current old ECU data but not sure how to input new info into the new ECU.

or do I need a dealer to do add the hours?

 

[buckbuck]

My understanding is there is no way to write to the ECU. You will just have to note the original hours and add them to the new reported hours.

 

[betterwhenitswetter]

Just wanted to report back for everyone else, on these older Yamaha YDS or YDS "1" computers its not possible to add hours. the newer stuff I believe he said anything YDS 2 compliant.

I will just engrave my old hours and swap date on the plastic housing of the ECU, only 43.4 hours I don't ride it much.

Good news is I got a 0 hour 2007 FXHO anyone want to buy a rare lower hour waverunner LOL j/k

 

[ncnmra]

Did you have to swap out your engine? What was the matter with it, and did you do it yourself?

 

[betterwhenitswetter]

Cylinder 3 was filling up with fuel, massive amount of fuel its not the injectors as they are brand new as well. the engine is fine the ECU took a dump.

Its rare but its not uncommon, the ECU holds the injector open for too long.

 

[ncnmra]

So you used the Waverunner as a donor? Are you selling it now?

 

[betterwhenitswetter]

So you used the Waverunner as a donor? Are you selling it now?

LOL, no. I don't have a donor waverunner, I only replaced the fuel injectors and ECU. I don't believe in buying an entire used craft to pull used parts off.

compression "cold" 160, 160, 155, 160. the engine is good as far as I can tell.

What issues are you having?