Briggs & Stratton VANGUARD M490000, Repair Manual

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DTC P0336 Signal Voltage Noisy (Non-Scan Diagnostics)
Step Action Yes No
1 1. Disconnect and reconnect CKP sensor connector.
2. Turn Ignition ON, Engine OFF.
3. Clear codes.
4. Turn Ignition OFF, and then back ON.
5. Does DTC return?
Go to step 2. Problem corrected.
2 1. Turn Ignition OFF.
2. Check CKP sensor air gap.
3. Is CKP sensor air gap set at 0.030 inches (0.76 mm)?
NOTE: If air gap is too large, engine will likely backfire during
cranking.
Go to step 3. Adjust as necessary.
3 1. Obtain two Briggs & Stratton Spark Testers (Part No. 19368).
2. Install spark testers in line with high tension leads and spark
plugs.
3. Look for spark in tester windows while cranking engine.
4. Is spark observed?
Go to step 4. Repair or replace
spark plugs and/
or high tension
lead/ignition coil.
4 1. Turn Ignition OFF.
2. Check valve lash adjustment.
3. Is valve lash within specification?
Go to step 5. Adjust as necessary.
5 1. Replace CKP sensor.
2. Is problem corrected?
- Repair or replace
EFI wire harness.
Spark Tester (Part No. 19368)
Not for
Reproduction