Cub Cadet 951-15298 Lawn Tractor Oxygen EFI Sensor Assembly

The Cub Cadet 951-15298 Lawn Tractor Oxygen EFI Sensor Assembly monitors exhaust oxygen levels and sends them to the EFI system. Wear can cause inaccurate readings, faulty signals, wiring damage, and inconsistent fuel adjustment.

This part resolves the following symptoms:

• Engine runs unevenly during lawn tractor operation.

• Throttle response becomes inconsistent during mowing.

• Engine performance changes under varying loads.

• EFI-related engine operation becomes irregular.

• Fuel mixture control becomes less consistent.

Engine Runs Unevenly

Quick Check: Observe the engine speed during steady lawn tractor operation.

Fix Suggestion: Correct sensor-related readings affecting EFI fuel adjustment.

Prevention Tip: Keep sensor wiring and connections clean during servicing.

Inconsistent Throttle Response

Quick Check: Monitor response while gradually increasing engine throttle.

Fix Suggestion: Address inaccurate oxygen readings affecting fuel mixture changes.

Prevention Tip: Check sensor connections before extended mowing periods.

Irregular EFI Operation

Quick Check: Check the sensor wiring and connector for visible damage.

Fix Suggestion: Restore proper electrical connection around the sensor assembly.

Prevention Tip: Keep wiring secured away from moving engine components.

Engine Performance Changes

Quick Check: Compare engine response under light and heavy loads.

Fix Suggestion: Correct sensor responses affecting changing fuel requirements.

Prevention Tip: Follow recommended engine service intervals for sensor checks.

Customer Experience: A customer found that the Cub Cadet 951-15298 Lawn Tractor Oxygen EFI Sensor Assembly helped provide steadier engine response and smoother operation during mowing.