Sled died, need some help

[obr]

I just put a turbo on a 08 Nytro MTX, ad I'm havig some problem makin it run...Read through this and tell me what you think.

The sled fired just fine, and ran good. What worries me is that the AF readings said 14,5 and would not change no matter how much you where on and off the throttle...even at idle it was 14,5. Fuel pressure was fine at 45.

And then, when we gave it enough throttle to start the turbo spinning, it came on good, but when he let off the throttle, the sled just dies instantly.

It fired again, and ran fine. Then, same thing happens again. Boost comes on, he lets off the throttle, sled dies.

Now it will not fire again. Not even a bit. No error codes, nothing. Engine turnes over fine, but it almost seems like there's no ignition. Could it have fouled plugs? Seems strange, but that's the closest I can come to a conclusion...

And, any idea why the AF reading wont change?

 

[feeze]

Buddy of mine had a similar problem. Found out that the rack of connectors (4 I think)on the right side had a couple that needed to be pushed back together. The engine compartment was packed full of snow and it was quite cold out at the time. We had to pull it home, put in the heated trailer, had a beer and started pulling the panels off. I stuck my hand in over top of the connector base, wiggle and pushed and felt a "click". sled started right up after that.



Don't know if this your problem, but that was my buddies.

P.s. it also was a Turbo Nytro

 

[obr]

thanks, we are checking that as we speak...Hope it's that easy...

 

[obr]

well, there was a problem with the AF, the connectors where out, but it still won't fire...

Anyone else?

 

[SPOOLED]

check pm's

 

[Hrt Offroad]

Did you check your fuse?

 

[diggerdown]

Try jumping the emergency stop switch, I've only riden with two nytos and both of them died on the hill, both had bad switches. We tested it with a jump wire at the plug and then just bared the wires below the plug and twisted them together so we could continue riding.

 

[lakercr]

The cam chain tensioner on these sleds is a bit suspect. It is possible that you've jumped the chain on one or both of the sprockets. Put the motor at TDC and try leaking it down. If this is your problem you'll know pretty quick.

 

[funjunkie]

What turbo kit is it? was the engine warmed up good before you reved it up? Is the fuel presure still the same as what you set it at?

 

[obr]

well, I figured one of the problems, or atleast I think I did. The map sensor and the Wideband is connected to the RB3, and there was a bad connection on the wideband, that made it think that the sled was lean. This made the map sensor fill the motor with fuel. The cylinders was full of fuel...So, I think this was one of our problems...Now I just need to check vavle clearance again....

 

[Pastor]

We had a bad ground on our fuel controller that caused it to malfunction. Once we fixed the ground it ran great!