This is there trouble shooting guide out of the service manual for this engine. Engine Loses Power ● Dirty air cleaner element. ● Engine overheated. ● Excessive engine load. ● Restricted exhaust. ● Faulty spark plug(s). ● High crankcase oil level. ● Incorrect governor setting (on engines equipped with electronic throttle body governor is digitally controlled and not adjustable). ● Low battery. ● Low compression. ● Low crankcase oil level. ● Quality of fuel (dirt, water, stale, mixture).
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Kohler ECV 730 - bogs under load
- Thread starter mczar07
- Start date
Thanks for the info. Iv'e been going through it as well and have done the following:This is there trouble shooting guide out of the service manual for this engine. Engine Loses Power ● Dirty air cleaner element. ● Engine overheated. ● Excessive engine load. ● Restricted exhaust. ● Faulty spark plug(s). ● High crankcase oil level. ● Incorrect governor setting (on engines equipped with electronic throttle body governor is digitally controlled and not adjustable). ● Low battery. ● Low compression. ● Low crankcase oil level. ● Quality of fuel (dirt, water, stale, mixture).
- installed air filter, changed oil and filter to proper level, checked compression, new spark plugs, new coils, reset the governor adjustment, charged and load tested battery, changed fuel, fuel filter, fuel pump, injectors, ECU reset, TPS relearn, new O2 sensor. MAP sensor is on the way since I damaged it when reinstalling it. There was a smashed O-ring on it which could have been causing the air leak, I just figured that it would have more of an issue at idle when vacuum is at it greatest. At idle, it runs perfect only has an issue when you load it up at high RPM.
It will blink codes if I unplug a sensor but there are currently no codes flashing on the MIL or CEL as I was calling it. I changed the broken map sensor with new and still has same issue. I'm not sure what else to do.When you are saying CEL I assume you are saying check engine light. Does this mower have a MIL light malfunction indicator light that will blink codes or are they calling it a check engine light. Anyway will it blink codes?
There aren't any codes unless I unplug a sensor. At that point, I read the flash codes from cycling the key to get them to flash. After I know those codes aren't causing an issue, I do an ECU reset and a TPS relearnIf this mower is running that bad and is throwing no code how are you trying to read the codes.
What procedure are you using to read the codes????There aren't any codes unless I unplug a sensor. At that point, I read the flash codes from cycling the key to get them to flash. After I know those codes aren't causing an issue, I do an ECU reset and a TPS relearn
the procedure from the manual.What procedure are you using to read the codes???
1. Check that the batt ery voltage is above 11 volts.
2. Start with the key switch OFF.
3. Turn the key switch to the ON and OFF, then ON
and OFF, then ON, leaving it on in the third
sequence. Do not start the engine. The time
between sequences must be less than 2.5 seconds.