2007 Polaris sportsman 500 H.O EFI starts then dies in 3 seconds

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Mar 1, 2024 | 01:41 PM

Ethan Hill

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From: Iowa

2007 Polaris sportsman 500 H.O EFI starts then dies in 3 seconds

2007 Polaris sportsman 500 EFI starts then dies in 3 seconds and then when you give it throtle it will sputter rev up and then stall out and die. I purchased a Fuel pump, Fuel pressure regulator, Fuel filter, Strainer, and Injector from Quantum Fuel Systems and put a brand new spark plug in my 2007 Polaris Sportsman 500 EFI H.O and put a brand new fuel filter in and a brand new battery and my atv still wont stay running and i also bought a Throttle position sensor for it to and it runs for a couple seconds then it just dies and when you give it gas it runs but after you let off it dies, but I am gonna buy a IAC sensor, and a AP sensor and a fuel sending unit and see what happens, this is also my 3rd injector that I have tried and my second fuel pressure regulator that I have tried.