Kohler — Crankshaft Position Sensor Test
Testing & diagnosis
From a Kohler service manual covering: ECV850, ECV860, ECV870, ECV880. Check it applies to your exact model before use.
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Procedure
- Remove #2 cylinder clean-out cover from blower housing to access; check sensor mounting.
- Inspect wiring and connections for damage or problems.
- Make sure engine has resistor type spark plugs.
- Disconnect Black connector from ECU.
- Connect an ohmmeter between #4 and #13 pin terminals.
- Disconnect crankshaft position sensor connector from wiring harness and test resistance between terminals.
- If resistance is incorrect, remove screw securing sensor to crankcase and replace sensor.
- When fault is corrected and engine starts, clear fault codes following ECU Reset procedure.
Tools required
- Ohmmeter Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Resistance value of 325-395 Ω at room temperature (20°C, 68°F)
Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.