B BrentW Member Aug 13, 2022 #1 My scag TCII with he EVC860 is bogging down under a load and flashing a 0174 lean fuel at high throttle code, Anybody have a quick fix to try before loading up to take a long ride to the dealership?
My scag TCII with he EVC860 is bogging down under a load and flashing a 0174 lean fuel at high throttle code, Anybody have a quick fix to try before loading up to take a long ride to the dealership?
ILENGINE Lawn Royalty Aug 13, 2022 #2 Most of the hints point to O2 sensor issues or wiring, an exhaust leak. Bad fuel pump or plugged fuel filters. Or possibly engine ground wire issues.
Most of the hints point to O2 sensor issues or wiring, an exhaust leak. Bad fuel pump or plugged fuel filters. Or possibly engine ground wire issues.
H hlw49 Lawn Addict Aug 14, 2022 #4 Had a ECV680 doing the same thing and it turned out to be the O2 sensor. Unplug the O2 sensor and see how it runs.
Had a ECV680 doing the same thing and it turned out to be the O2 sensor. Unplug the O2 sensor and see how it runs.
S slomo Lawn Pro Aug 14, 2022 #5 BrentW said: Any idea where the motor ground is located? Click to expand... Chase down the - battery post to frame. Follow it to where it connects.
BrentW said: Any idea where the motor ground is located? Click to expand... Chase down the - battery post to frame. Follow it to where it connects.
ILENGINE Lawn Royalty Aug 14, 2022 #6 slomo said: Chase down the - battery post to frame. Follow it to where it connects. Click to expand... BrentW said: Any idea where the motor ground is located? Click to expand... Also need to check smaller wires that are connected to the engine block with bolts. Most likely will be black wires.
slomo said: Chase down the - battery post to frame. Follow it to where it connects. Click to expand... BrentW said: Any idea where the motor ground is located? Click to expand... Also need to check smaller wires that are connected to the engine block with bolts. Most likely will be black wires.
