Error codes 25 and 26

[SRX Boy]

I'm getting these two codes - I know what they are (cylinder #2 intake sensor/hose/electrical problems). Which is cylinder #2?? All hoses are properly connected so it may be the intake sensor or an electrical problem. Anyone know how to test the sensor? When warm the sled sputters on deceleration and periodically won't idle - doesn't do it all of the time just periodically (error codes are also periodic but seem to be more frequent). Airbox seems to be getting some oil or gas build up as well.

 

[UP bushman]

Info below

 

[yamahas]

there are 2 hoses that are well hidden they are under the the plugs on the back. Just want to make sure that its also hooked up.

 

[SRX Boy]

Tested the voltage and I'm getting about 5.5V on Cylinder #2 and 4V on Cylinder #1. Cylinder #1 is within spec but #2 is higher than it should be. Tried changing the air intake sensor from #2 to #1 but that didn't change the higher than expected voltage so I don't think it is the sensor. I recently had the added ground update done to the sled - can't see how that would increase the voltage? Anyone have any other ideas? If there was a voltgae problem I was expecting the voltage to be below the spec not above - is this the right assumption/expectation?

 

[SRX Boy]

Anyone have any experience with the air intake sensor voltage? I brought the sled in twice last year to have this problem dealt with and no luck. Intent to bring it to another dealer in a month or so but thought I would reach out to the trusty TY team first.