NYTRO GAUGE SWAP?

[Grimm]

More info: On the Nytro here is where each of the coloured wires run to. Perhaps this can be cross referenced with that of the Vector or Apex gauges.

Green/Black wire is fed from the Fuel sender.
Red/Black wire is fed from the Oil level switch.
Red/White wire is fed from the Engine stop switch.
Blue/Yellow wire is fed from the ECU.
Chocolate wire is fed from ECU, passing through Fuel sender and Oil level switch.
Yellow is fed from the headlight relay.

 

[DANX123]

You'd probably have to compare the electrical diagrams to see if the corresponding coloured wires connect to the same sensors.

Do the colours match up from the Vector gauge the same way as the Nytro gauge?

Looking at the electrical diagram right now for my Nytro, the speedometer guage wires are a group of 6 wires, like a 6 pack of beer, reads as follows:

Top row: Blue/Yellow, Yellow, Red/White
Bottom row: Chocolate, Red/Black, Green/Black

How does this compare to the Vector guage?

WELL WITH THE NYTRO GAUGE DISCONNECTED THE WIRING TO THE PIN IS AS FOLLOWS there are 12 slots in the female connector .top will have the snap connector that snap into the nytro gauge facing up as well
top row
slot 1(empty) slot 2 red/blue stripe slot 3 blue slot 4 green black stripe slot 5 red yellow stripe slot slot 6 empty
bottom row
slot 1 yellow wire slot 2345 empty slot 6 brown

on the nytro gauge the snap faces upwards and on the vector gauge the snap faces down? not sure if that matters

 

[skidooboy]

where did you find an apex guage for 500? they list for about 750 from yamaha. ski

 

[randman516]

ski, south seattle sports plaza has them for $540.65 online

 

[Mtnviper]

Yep, the EFI Venture guage which appears similiar to the Apex guage is $395.55
It may not have as many features as the Apex guage though. The $396 question is can it be made to work on a Nytro!

 

[BETHEVIPER]

Ill sell you a rx1 guage for 75bucks.

 

[Grimm]

TTT

 

[Mtnviper]

Looking at the wiring diagram for the Nytro, I see that the guage (IPC) has no direct sensor input for RPM and MPH. It relies on a data input signal from the ECU,via the L/Y wire.
This is similar to how automotive systems operate when there are several module (computers) in a car. These modules all have specific functions and communicate data (talk to each other) through a single wire called a serial data line.
Usually there is one module that is the "power mode master". It is the "boss" and talks to all of the other modules, sending and recieving data.
In the case of a Nytro, the ECU is the master and the IPC is the slave module.
For a module to operate, it only needs three curcuits. Power, ground, and a communication line. In the case of the Nytro, R/W is igntion power, Ch is ground, and the L/Y wire is the communication line.
The Vector gauge may not be working because any one of these could be in the wrong pin location for the main connector.
Then there is the issue of if the two modules (IPC and ECU) speak the same language. Usually serial data lines are a simple on/off voltage signal. However it can be 0-5, 0-7, or 0-12volts and at different speeds per second.
I would think a 09 EFI Vector and Nytro would speak the same language, since they are the same basic engine control systems.
However the service manual has almost no info on the communication system between the modules. I hope that it is just a matter of finding the correct pin locations for a Vector EFI IPC to work.
I plan on stopping by the dealer in the next day or so to check on my sled. I'll check to see if they have a 09 Vector GT service manual, and look at the wiring diagram. To see how the pin locations compare to a Nytro.

 

[Grimm]

See if you can photocopy the wiring diagram for the Venture GT and post it here. That would be awesome.

 

[Mtnviper]

Well I stopped by the dealer to photo-copy the Venture GT wiring diagram. But it dosn't scan very well. So I made a copy of the guage connector view in MS paint. As you can see the wiring pin locations are the same, with the exception of the Venture GT connector having an addtional O/R wire for constant battery power.
If Danx123 is using a Vector GT EFI guage, it may need this constant battery voltage source to operate. If the Vector GT guage has a clock?? Then it would use this B+ curcuit for clock memory, like the Apex guage.
Danx123
If indeed you have the EFI guage, (and not the carburettor Vector)you might try adding the B+ batery constant wire, to see if it works!
The B+ pin is in the upper corner next to the R/W terminal and above the Chocolate one. This would be an empty slot on a FX Nytro.

 

[rrxx-1]

Does anyone know why the carb vector guage does not work? Nothing lights up at all..........

 

[mllr25]

Because it doesnt send power 2 the ecu because it carb which needs no power on the intial start just gets power off the stator. the efi needs power to the ecu to power fuel pump efi and fire the motor which then goes to the gauge

 

[Mtnviper]

Does anyone know why the carb vector guage does not work? Nothing lights up at all..........

I stopped by the dealer again today, to check out a wiring diagram for a carbed Venture.
The pin locations are different, which is why it wont even power up. Also the carb'd sled has the vehicle speed sensor signal going straight to the guage. Unlike the EFI sleds where the signal is routed to the ECU, then the guage gets the speed signal from the ECU.
This tells me that the EFI ECUs probably send a rpm signal to the guage in a different format then the carb'd ECU. (they speak different languages)
I suspect even if you re-wire the connector for the carb'd guage to power up. Most likely the rpm signal be incorrect, very likely the self diagnosis modes will be wrong as well.
This leaves us with using EFI guages. Thanks to Skydog, we know that the Apex guage will work with some needle correction.
Does anyone have a EFI Vector guage that they can try on a Nytro? The connectors are wired the same, so it shouldn't damage either componet to try!

 

[SledFreak]

I bet Ulmer could try it... I believe he has one of each. I'm into buying one of these guages, because the stock guage is a joke, especially after using the one on my Apex for 4 years.

 

[rightarm]

Just curious would the Apex gauge draw more power from the Nytro system than the stock gauge?.