FL250DET twin, active light won't light up...

[Gunnar00]

Hi

I have a problem with a F250 4.2L responding.

the power head has just been replaced and now it won't behave...
The other engine works i.e. it's active light comes on on key-in, shifts, starts and runs.

The unresponsive engine gives a buzzing sound from the throttle like the other one, trimes up and down and the command link reports no errors but that's it, shift motor does not move and it does not crank over.

And here is the strange part, when I swapped out the control (DTS) for a new one, nether engine illuminated it's active light or responded to crank command.

I'm all out of ideas, any help is greatly appreciated.

Regards, Gunnar

[boscoe99]

When the new control box was installed did you do a reset using YDIS? If not, your motors won't talk to your control box, or vice versa.

[Gunnar00]

Thanks for the help boscoe99

I swapped the ECU for the one off the previus powerhead and all is well now. Apparently, engine and control are bonded for life...

Regards, Gunnar

[rodbolt17]

did you try the control box reset with YDIS ?

[boscoe99]

Thanks for the help boscoe99

I swapped the ECU for the one off the previus powerhead and all is well now. Apparently, engine and control are bonded for life...

Regards, Gunnar

They can be divorced and remarried to other engines/control boxes but it takes Judge YDIS to issue the divorce decree so a second marriage can happen. Polygamy is prohibited by Yamaha law.

With the advent of jay/homo marriage here in the states I wonder if Yamaha is going to have to engineer a way for male fittings to mate with male fittings and for female fittings to mate with female fittings? Hmmm.

[tmann45]

With the advent of jay/homo marriage here in the states I wonder if Yamaha is going to have to engineer a way for male fittings to mate with male fittings and for female fittings to mate with female fittings? Hmmm.

Hot coffee in the nose burns.

[rodbolt17]

but how do you divorce inlaws and grandparents?

[99yam40]

Just tell them to take a hike,
but I never tried it before.
Never tried to talk to the inlaws after the big D