Fx 140 ecm help!

[kurtleimkuehler]

My ECM on my waverunner is bad the numbers are 60-E-11 F8T93773 3x30

I found one for sale with the numbers 60-E-01 F8T93371 2322

Does any credible source know if you can interchange these? They look exactly the same with the same number of pins. THANK YOU

[skisol]

Re: Fx 140 ecm help!

I don,t understand the numbers exactly.

Here an example for the format of part numbers.

60E-8591A-30-00 ECM 2006 FX Cruiser

I do know that the HO FX ECM is different than the FX ECM

What year and exact model ski do you have?

[Technical Support]

Re: Fx 140 ecm help!

If they are from the same year they will work. If they are different years then I'm not sure, I know some of the harnesses have different ends on some of the plugs so Im not sure if the sensors all work the same with different computers.

[kurtleimkuehler]

Re: Fx 140 ecm help!

the good ecm is off of an 02 fx140

the bad ecm (mine) is off of a 04 fx140 cruiser (not a HO)

both of the ecm's look exactly the same and have the same number of pins for the plug. I dont understand the parts numbers that are on the OEM websites are not acutally printed on the ecm.

EX. 60E 8591A-11-00 is the ECM listed for my waverunner. The actual text printed on the ECM is 60E-11 F8T93773 3x30


The ECM from the 02 that I am looking to buy is

60E-01 F8T93371 2322

So does anyone know if they will interchange?

[torquenut]

Re: Fx 140 ecm help!

The MR-1 engine has been used in several different boats, FX140,FX HO, and VX110 with changes in bore intake and ignition design.
I don’t see any changes in fuel delivery and by looking at the schematics the ECM is the same.
The engine codes are;
2002 FX 140 60E
All other years FX 6b6
VX 6d3
The first three numbers are boat/eng it is used on.
The next sets of numbers 8591A this is the actual part number.
The next number 00 or 01 usually is group number.
and the last is the identification number for that subgroup 00 or 001 etc.
So all you really need to check is the number after the engine number.

But please remember that the FX SHO 6s5 is complete different engines so do not use this ECM.

What is very interesting is why or how did your ECM die? Yamahas ECM are good they just don’t die as others (Sea Doo's).
If you can tell me symptoms I may see what you have missed.

[kurtleimkuehler]

Re: Fx 140 ecm help!

Maybe it died from jump starting......I dont know.....i took it to the dealer and they said they ecm was bad.....it was shooting fuel out of 2 injectors, but not the other two. I hotwired the wiring harness and got all the injectors to fire, but i think that threw the fuel timing off or something and it still would not start. It was flooding itself out. When I would crank it with the fuel pump unhooked after I had flooded it, it would start and run on what gas was in the cylinders, so I know it was flooding itself out. I havnt tried to put the new ecm in yet, they are in the skis are in the back of the machine shed but i am praying it works.

[kurtleimkuehler]

Re: Fx 140 ecm help!

Maybe the ecm is not dead, I dont know, thats just what the dealer said. I dont know what other component controls how much fuel it sends to the motor, or what makes the injectors open and close. Waverunners are very complicated machines.

[torquenut]

Re: Fx 140 ecm help!

If the dealer hooked up directly from his computer to the engine. He can them test the system. But this will only test not give you a true fault. The tech can run a test on the injectors, the computer powers them up and fire each injectors.
But what it does not check is the harness, from the ECU to ech injector.
Please note that each injector has an individual ground that goes to the main ground block.
SO what i am saying is if the wire harness is bad your problem will not go away regardless of changing ECM etc. If you are good with a multi meter than it would be easy to check the harness.

[kurtleimkuehler]

Re: Fx 140 ecm help!

if i recall, the computer showed that injectors 1 and 2 were not receiving ground. They said that the fix was a new ecm.


Could something in the harness be messed up..? Where is the grounding block located, and how do you test that with a meter......That would be ohms for resistance right? What else do you look for? I have the book i will look through it.

thanks

[torquenut]

Re: Fx 140 ecm help!

Dude, run away from that dealer.
The injectors ground wire all go to one junction box.
Each injectors has two wire, purple are the signal from ECM (positive) and red with yellow is ground.
From the injector find the red/yellow wire and trace it to were it junctions into a plastic box.
There will be several red and yellow wires going into it. Also you will see pinks wires at this box.
Check continuity from each injector back to the box. If the wire is open spice a new wire from injector to box.

If the ground wire check good them check the signal wire, it is the purple at the injector and goes to the ECM.
You will see that each injector will have a solid purple with a color stripe
Purple with red, purple and black, purple and yellow, purple and green.

The ECM has three connectors find the one that has the purple/red, purple/black, purple/yellow, purple/green disconnect it.
Then simply go pin to pin, example on the ECM connector side for wire purple/red you would put a meter lead (red or blk your checking for OHMS) and on the injector disconnect corresponding injector that has purple/red wire and read meter, resistance should be close like .01 if it reads high then that is the broken wire. You can then splice a new wire.

Look at the Fuel Control System wiring diagram and at the last of the book you have a fold out diagram.

[kurtleimkuehler]

Re: Fx 140 ecm help!

where on the machine is the box that all the red/ yellow wires go to ? I dont see any pink wires in the place i thought it was right above the injectors.

[kurtleimkuehler]

Re: Fx 140 ecm help!

I finally moved the waverunners out of the back of the shed and worked on the fx 140.................i put the new ecm in i purchased off of ebay for 300, and after 2 yrs it fired right up..........thanks for anyone who helped me out with the problems.