2009 Nytro XTX. HELP!!!!.

[TommyBoy791]

So Facebook has been somewhat of a help but I'm still hitting a wall here. 2009 Nytro XTX. Ran fine when parked end of last season. Started up fine periodically through the summer/early fall. Started it last week to pull it out to change fluids and got a 13, 15, 25, and 84 code. Yes I know what they are so we can skip that. I assumed the 84 was being caused by the 15. And 13, 15, & 25 are all on the same harness along the fuel rail so I've got 2 days into tracing wires and checking pins and ground blocks and cleaning every connection I come in contact with. And still no luck. When I pull the little 4 prong bridge out of one of the flat junction boxes (blue/black wire with brown stripes which tests as a good ground at all affected sensors) all codes except for the 84/TORS go away but I get an Error 1 while cranking and throttle angle shows a 98 in Diag. When I reconnect that black flat junction all my codes come back but Error 1 goes away and my throttle angle returns to 1 at rest. I'm pulling my hair out. Ran absolutely fine a few weeks ago and is stored under a cover inside a trailer. Battery is good. And I get a solid test light at chassis grounds. I'm NOT getting any ground signal at the big gray plug that feeds said fuel rail harness. I dont have any type of pinout diagram for that either. Any idea where to go from here?

 

[MrSled]

I had an xtx that had a rub through where harness goes over the tank under the bars. I had to pull it all above tank to find it.

 

[TommyBoy791]

I had an xtx that had a rub through where harness goes over the tank under the bars. I had to pull it all above tank to find it.

Actually found the issue late last night. One of the connectors inside those flat little black junction boxes was corroded. The bridge across them tested fine but when I probed the individual wires from the backside only 3 out of 4 had power. It wound up being the 5v Reference to the TPS. Cut the block off and soldered them and all my codes went away.

 

[MrSled]

Actually found the issue late last night. One of the connectors inside those flat little black junction boxes was corroded. The bridge across them tested fine but when I probed the individual wires from the backside only 3 out of 4 had power. It wound up being the 5v Reference to the TPS. Cut the block off and soldered them and all my codes went away.

Awesome !!! Great work!!