• We are no longer supporting TapaTalk as a mobile app for our sites. The TapaTalk App has many issues with speed on our server as well as security holes that leave us vulnerable to attacks and spammers.

2009 Nytro wont fire?? - Suggestions where to start???


Ok everyone here is a bit of a update. I am getting spark and the fuel pump is pumping fuel. I swapped out the computer with my buddies. I also unhooked the power commander and went back to the original plugs. It’s like something is telling the injectors not to feed fuel once I try to refire it. Is there a throttle position switch that would cause this or maybe a crank sensor? Worked on it with 2 other buddies and it has all of us stumped. Would a stator or pick up coil cause this?
 
Last edited:
Phatboi99 said:
Ok everyone here is a bit of a update. I am getting spark and the fuel pump is pumping fuel. I swapped out the computer with my buddies. I also unhooked the power commander and went back to the original plugs. It’s like something is telling the injectors not to feed fuel once I try to refire it. Is there a throttle position switch that would cause this or maybe a crank sensor? Worked on it with 2 other buddies and it has all of us stumped. Would a stator or pick up coil cause this?
Click to expand...
Also, the weird part if the sled sits for a while a day or longer it will fire up , but once you shut it off it will not re-fire????
 
So it starts cold, but won't restart after warmed up? And it shut itself off on the trail, so should have been at operating temp at that point. I assume you checked for spark after it was warmed up? Also checked that the injectors are getting are getting power when warm? Sounds like a component is either failing, and only has a problem warm, or the ecu thinks the engine is overheating. I have a Venture ( two stroke) that had a bad stator and would quit on the trail, but would restart when it cooled down.
 
Keith1962 said:
So it starts cold, but won't restart after warmed up? And it shut itself off on the trail, so should have been at operating temp at that point. I assume you checked for spark after it was warmed up? Also checked that the injectors are getting are getting power when warm? Sounds like a component is either failing, and only has a problem warm, or the ecu thinks the engine is overheating. I have a Venture ( two stroke) that had a bad stator and would quit on the trail, but would restart when it cooled down.
Click to expand...
Correct Keith, starts cold but not warm. I dont know if the spark I check was after it warmed up or not. We messed with it all day today. I didnt check for power at the injectors. I don’t know if I’d know how to do it. Might have to do some research on it. Can you test a stator? Thanks for the input.
 
You should get 14v to the battery at 5k rpm. Never disconnect the battery when the engine is running or you will kill the voltage regulator. If you dont have power to the battery, check the main fuse. If the fuse is good, and no or low voltage at the battery, you need a stator. You need a service manual. You can pull down a pdf copy, or pm your email address, and I can send you one.
 
Last edited:
Ok another update, I swapped out some pretty black plugs with some new ones and it fired right up. While running we checked the stator as discribed and was getting. 13.8v (belt didn’t like it though). Shut it off and it did restart, Not good but did restart. Let it idle for a bit and it stalled and would not fire back up. We rechecked for codes and I got a 12 which seems to be the crank sensor. I didn’t get a warning light or anything on the gauge pod for the code, we just read how to check them and did it. Now is the crank sensor and pick up assembly the same thing? It’s behind the primary and held in with a Allen head? Thank again everyone.
 
Code 12 is the crank position sensor. Yes, it is what tells the ignition when to fire. Sounds like you need one. Part number is 8GL-81670-00-00. It is behind the primary clutch. Easy fix. Also check the wiring harness for a rub through where it is routed by the front engine mount right behind the clutch.
 
Keith1962 said:
Code 12 is the crank position sensor. Yes, it is what tells the ignition when to fire. Sounds like you need one. Part number is 8GL-81670-00-00. It is behind the primary clutch. Easy fix. Also check the wiring harness for a rub through where it is routed by the front engine mount right behind the clutch.
Click to expand...

Yes not that hard to replace but really hard to find one. On back order till March 13, just my luck. Thanks for your help and I’ll send you a update when I get one.
 
So the boat place was a no go, had non. I called 26 dealers and nothing. Ended up having to go with a used one on eBay and pay $85 for overnight shipping. We went and tested it but it seemed to test ok. It was cold in a garage and measured low 400s, hit it with a a hair dryer then held it in my hand and was within the 445-545. My buddy was thinking being in the block it will get a lot more heat and thinks it could cause a open circuit when it gets hot. Could this happen? I’m thinking if this doesn’t fix it it’s going off to the dealer.
 
It could happen, that what is wrong with the old one. Try your "new" one and see. I'm not a big fan of a used one considering they are a known problem.
 
any place that has 9, has none. As far as I know there has been very few failures and that is why its backordered. I get used stuff all the time in that situation, quicker than new. At least it actually exists and they are not just wasting your time. But if it reads good, I bet its fine
 
Well it did happen to be the the crank sensor we think. It starts up, runs, restarts, doesn’t stall. We restarted about 6 times. I took it outside and did some hot laps in the yard and no issues. Fingers crossed it’s fixed. Going to old forge tomorrow. We’ll see. Thank you everyone for your help and info.
 
You must log in or register to reply here.

Similar threads

M
09 NYTRO wont start after storage... any ideas?
2
Replies
15
Views
2K
turbogts22
turbogts22
S
Error 43 no start
2 3
Replies
42
Views
9K
74Nitro
74Nitro
N
13 NYTRO NO FUEL PUMP WONT START(RELAYS ARE NEW)
Replies
3
Views
3K
m.schuey7
m.schuey7
C
Dreaded Code 43 - tried everything
Replies
3
Views
2K
74Nitro
74Nitro
S
Wont stay running
Replies
5
Views
669
maim
maim


Back
Top