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2022 FORD MUSTANG MACH-E
Extended Range Dual Motor AWD•AWD•AUTOMATIC•ev
9 active safety recalls on this vehicle — view recalls
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Repairs0Labor316Torque4675Fluid5DTC1522Battery1Maintenance0Recalls9
P0321high severityPowertrain

Ignition/Distributor Engine Speed Input Circuit Range/Performance

on 2022 Ford Mustang Mach-E Extended Range Dual Motor AWD · AWD

What this code means

The engine speed signal from the ignition or distributor sensor is present but out of expected range. This often means erratic or intermittent RPM readings that confuse the PCM.

Symptoms

  • Erratic tachometer readings
  • Hard starting or stalling
  • Intermittent misfire feel

Common causes

  • Faulty crankshaft/RPM sensor
  • Damaged sensor wiring or connector
  • Reluctor ring damage
  • Faulty ignition module

Diagnostic steps

  1. Scan for related codes and freeze frame
  2. Inspect sensor wiring and connectors
  3. Check sensor signal with scope during crank
  4. Test reluctor ring and sensor air gap
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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