Need help with my cat

[Ryan_V]

Trailered my wheeler up to mille lacs yesterday during the snow storm. Today it woldn't start. Finally got it to go, but it flashed "EFI" on the display. It will idle and run, but when you try and go, it spits and sputters. After turning it off and back on, it doesn't show the efi again, but will still idle, and sputter when you try and go. Anyone have any ideas, I really can't afford a repair bill right now. Thanks

***update*** still no efi in the display. I discovered that if I push the reverse override button, I can drive it forward like normal. It just seems to do the same thing as it normally does when in reverse, only in drive too. I'm hoping it's just something frozen that will fix itself when I can get it in the warm garage.

What do you think?

[Macgyver55]

Possibly the reverse sensor got moisture in it so it thinks its in reverse so it requires the overide to run correctly. I'm thinking a day or two in a warm place will probably make it work, but you'll still want to track down the cause so you can remedy it for the future.

[Ryan_V]

Another update... Thawed it out and it still does the same thing. I noted it doesn't do it in low, just in high. What can I do and check before I have to take it in?

[Macgyver55]

Is there a sensor located somewhere on the shifter control so it knows what gear it is in?

What year and model Cat you are talking about?

[Ryan_V]

Should have mentioned that before, sorry. Its an '07 arctic cat 700 efi. Not sure about a sensor.

[Macgyver55]

I've never run into it, but from what I gather from reading up a bit there is a diode located in the fuse box that can go bad that can cause the problem you have.

[dogs]

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[Ryan_V]

Back to the top, anyone have any further ideas? Got it thawed out, and still the same thing. Looking into the diode, any idea which one it is?

Alright, next question... what is a diode and what does it do? I switched a couple diodes in the fuse box, and the problem went away. So then I switched them back to try and find the bad one, and the problem didnt return! So it must have been a bad connection in one of them...... Guess I'll put some dielectric grease on them and call my self a mechanic!

[Macgyver55]

There are some Arctic Cat forums that may help you too, but I read that there are 3 diodes in the fuse box and they have to be installed the correct direction. If they were removed for some reason and put in backwards it wont work, or if the diode is bad it wont work. You could try swapping them out and see if it makes a difference. Supposedly they look similar to fuses but have an arrow on them. The fuse box cover may describe which ones they are.