My neighbor has a 800 rzr. about a month ago it wouldnt start. he checked some forums and came up with tps sensor. changed sensor and it ran like crap at first. next morning started and ran good. last week, he went to ride and wont start again. pulled tps and and the oring was not on it. he figured it got dirty or wet and went bad. he ordered another tps and now it starts but wont run for crap agian. we adjusted the tps the way we were told, with volt meter. it will start, idles roughly but when you hit the gas just falls on its face and dies. if you slowly push the gas it will get to about 2k rpm and then fall on its face. while it is running, it is running very rich, i think. the exhaust is very strong and will burn eyes. it smells like raw fuel. this thing is really kicking our butts. we have checked most every electrical con. on engine and checked fuel. any ideas would be greatly appreciated.
keith

 

does anyone know about these things. lol

 

Might need the ecm reflashed to address the rich fuel mixture which would explain why it runs bad. Definitely will need to change the oil if that much fuel is getting dumped in. Was the oil changed with the new tps? If there's enough gas in the oil it will run like crap and could do a lot of internal damage.