Kohler EFI Problem

[dogsluvtrux]

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?

[jkilov]

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

[TOOMUCHWALKING]

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

[fixer67]

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

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

[bart may]

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

[VegetiveSteam]

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