Kohler EFI Problem

Discussion in 'Mechanic and Repair' started by dogsluvtrux, May 31, 2008.

  1. dogsluvtrux

    dogsluvtrux LawnSite Member
    Messages: 155

    I've got a 28 hp Kohler EFI that is having some intermittant power issues.

    It will run out fine, and then idle down and lose power, and then comes back fine. I changed the plugs (they were a little fouled) and fuel filter, fresh gas...

    It's not smoking or anything....just losing power briefly and coming back.

    Fuel Pump?
  2. jkilov

    jkilov LawnSite Bronze Member
    from MS
    Messages: 1,415

    You may want to check wire grounds and connectors for corrosion. Next thing to look would be O2 sensor.

    TOOMUCHWALKING LawnSite Member
    Messages: 171

    How old is it ? I have a 2001 26 HP version that would cut out after high speed bumps. After a factory sensor/ground update it went away
  4. fixer67

    fixer67 LawnSite Silver Member
    Messages: 2,098

    Anyone who has a Walker EFI that is acting up needs to get the factory sensor/ground update
  5. bart may

    bart may LawnSite Senior Member
    from montana
    Messages: 273

    I added some injector cleaner to mine and it cleared up the problem. Give it a try.
  6. VegetiveSteam

    VegetiveSteam LawnSite Senior Member
    Messages: 296

    Yes I would check fuel pressure first on any EFI with power issues. Easy to do and can eliminate a lot of questions quickly.

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