Walker MTGHS 26efi fouling plugs out bad

Discussion in 'Mechanic and Repair' started by Curtis, Oct 3, 2012.

  1. Curtis

    Curtis LawnSite Member
    Messages: 161

    Had the fuel filter changed recently, the plugs are fouling out,can't figure it out. Getting a 61 code even after disconnecting the battery for awhile. Great air filter, good gas, new plugs. Only 800 hrs, I know it was suppost to go 1500 hrs on that Bosch filter. Isn't there a sensor that moves the engine out of closed loop after it warms up ? Maybe the injectors are clogged . Always ran 89 gas. Starts good and runs until the plugs foul. Could it be electrical ? The dealer is an hour away thought I'd ask questions first.
  2. jetta

    jetta LawnSite Member
    Messages: 223

    is it using oil,(you probably cant tell by smoke). had three 23hps/carb with bad cylinders.
  3. fixer67

    fixer67 LawnSite Silver Member
    Messages: 2,098

    Code 61 is what you want. Code 61 means END OF LINE. If there are any codes like 31 or 32 you will still get 61 at the end.
    Now here is a dumb question. Is the smaller inside are fillter in right? I know it is a dumb question but just check your air filters to be sure there are clean and installed right.
  4. Oldtimer

    Oldtimer LawnSite Bronze Member
    Messages: 1,459

    Oxygen sensor???

    Needs to be put on a computer.

    It will only run about 10 feet with the filter installed backwards.


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