2009 Polaris Ranger 700 Will Not Start

[Gtommyholland]

Good morning folks I have a 2009 ranger 700 XP that will not start. It’s not getting power 12 votes to the fuel pump or the coil. The code that shows up is 4341. installed a brand new ECU And still no power to the Coil or and fuel pump.. All of the fuses are good and all the relays are good when I tested the wire going to the fuel pump it shows 4 Amps. Ran a hot wire to the fuel pump and it works fine. The ECU I installed is part number 4011599. Also the speedometer goes to 70 mph when I switch it on and then drops to 40 mph and back-and-forth. I have checked the ignition switch and all the connections for the ECU and the Coil. Any help will be appreciated.

[Gtommyholland]

On 6/9/2023 at 12:06 PM, Gtommyholland said:

Good morning folks I have a 2009 ranger 700 XP that will not start. It’s not getting power 12 votes to the fuel pump or the coil. The code that shows up is 4341. installed a brand new ECU And still no power to the Coil or and fuel pump.. All of the fuses are good and all the relays are good when I tested the wire going to the fuel pump it shows 4 Amps. Ran a hot wire to the fuel pump and it works fine. The ECU I installed is part number 4011599. Also the speedometer goes to 70 mph when I switch it on and then drops to 40 mph and back-and-forth. I have checked the ignition switch and all the connections for the ECU and the Coil. Any help will be appreciated.

Just a follow up on ranger 700efi, replaced ECU with a new one, carried it to a local Extreme Motor Sport shop and had it programmed. Runs great now but it won’t idle. RPMs at around 650, then dies. Any idea?

[rohn bold]

If your ATV has spark and fuel, there are a few things you can check to determine the cause of the problem with Polaris Ranger. The fuel may be struggling to get from the tank to the engine. This could be due to a clogged fuel line, a faulty pump, or a blocked filter. Another possibility is that the spark plug isn't firing correctly.