CKP — 60-2 Pattern

What it tells you

The crankshaft position sensor produces a square-wave pattern as the toothed reluctor wheel passes the pickup. The missing-tooth gap tells the ECU where TDC is. A scope reveals damaged teeth, wiring faults, and air-gap problems an OBD reader will never flag.

Symptoms this catches

• ▸no start
• ▸crank no start
• ▸intermittent stall
• ▸timing
• ▸misfire

Watch the walkthrough