M8 ho or non ho? CCU code, gauge goes crazy

[ippielb]

How can you tell difference between the "HO" and "non HO" motors? Looking at the stm piston power valves and they have two options.

And went out riding the other day, drove 8 hours, pulled up to riding area, started sled let it warm up for 5 minutes, heat exchanger started to get warm water, hop on and start going down trail for 20 seconds, look down at my gauge to check for anything out of ordinary. And I see CCU coming up, and the wrench, I stop. Watch my gauge, nothing else comes up, just CCU constant, and the wrench constant. Turn off the sled, open hood, nothing visually wrong, disconnect gauge, reconnect. Restart, all back to normal, ride sled into the riding area and then my gauge starts going bonkers, random stuff starts coming up on gauge and the needle is maxed, so I go through the routine and everything stops. Until I drive it again and then it goes crazy, I said screw it and just rode the thing. Used my boondocker to monitor my rpm.

I am unaware if my motor is a 2009 or 2010, I think it's an 09. Sled ran good until I bent the rear extension on tunnel and cracked cooler rail.

 

[ippielb]

So figured out that the 800cc HO motor's power valves are 2.321" and the non HO motors are 2.200". If anyone was curious.

I have no figures out my gauge issue, and the CCU code that came up causing the intermittent problems, sled only has 750 miles on it.

 

[fastgas]

Better replace your CCU (chassis control unit) before you fry your ECU (it's just a matter of time before it happens, and it will happen!). This is a common issue on the 07 and 08's but less so on the later models - you want to have your headlights plugged in to provide a load, otherwise the extra voltage produced by the stator can overload the voltage regulator. Maybe check for shorts, loose wires, etc., but definitely get it fixed before riding any more. Also the HO motor was '10 and later (you probably figured this out).

 

[ippielb]

Do 09' have a CCU like the 07/08 silver finned box? I was looking in the parts diagram and couldn't find one.

 

[Hardass]

my 09 m8 has the finned with three wires