I have a 09 Assault and my dad has a 09 RMK Shift... Both have stage 2 SLP setup (SLP Single, Air Intake, Clutching). The Assualt has a PCV and the Shift has a PCIII, both with the same mapping. And the sleds do not run the same. Why? Both were bought used. Both had the update done after we bought them.
We ran the Shift w/o the PCIII for the first trip (it had original 2010 mapping) and it ran ok except the DET light came on several times between 6000-6300. The Assault ran GREAT(spike to 8350RPM then drop and hold at 8200), it really ripped, except it had the lean stumble around 6200, then the VR went out and took out the ECU. Convinced a dealer to take them off a sitting 800 and Polaris warranteed everything but labor, both are out of warranty except 2nd yr engine that came with update). So I thought that was pretty cool. They also put in the new 1/14 flash to the Assault and Shift beacuse it was supposed to desensitize an oversensitive DET sensor, but then MY DET light would come on around 6200 and the Shifts still came on.
OK so I buy the PCV because I read all these forums and people say the DTR PCV is the way to go. So I put that on my Assault with Jim's map for my engine setup. The PCIII also gets put on the Shift with SLP's map... Neither sled will tach out. They struggle to hit 7900... Its sad when the stock 2003 RMK 700 can blow by the 09 Shift 800 with the SLP stuff on.
So we flash back to original 2010 mapping and leave the Power Commanders on. Load DTR maps into both. Go for a ride and the Assault runs fine, maybe slightly rich, and the Shift is lean, the DET light is flashing again at 6400. Plugs and Temp Sensor in pipe are both pretty light confirming its lean. But gas mileage is out the window on both of them... I mean like a 1/4 tank in probably 12 miles which is really going to suck when I go to WY in 2 weeks and I can't stay out and play cuz I have no fuel. So we fattened up mid-range on the Shift's PCIII and are going to go for another ride tonight to see if the DET light will come back on.
So two identical power plants... WHY do they need two different maps?
So thats pretty much the whole story for me. If anyone has helpful advice or ideas please speak up.
But that kind of shows you the confusion/aggravation that goes on with trying to fix this stuff. I think what most people are upset about is that Polaris has not been able to fix it for 2 years, the 08 800s had issues, 09 800 have issues, and I dont know anyone with a 10 so I can't say about those. Regardless, they've had it this long, the problem should be fixed. Its not. Most people don't have the facilities or equipment or time to troubleshoot, guess and check fixes to their $10K+ sled that should work consistently off the line. But still, I'm a diehard Polaris guy and I'm not going to jump ship.