DTC 2-1-4 Engine Speed Sensor Signal Sporadic

2-1-4 ENGINE SPEED SENSOR SIGNAL, SPORADIC

Preconditions for DTC
^ If the ECM counts more than two teeth too few or too many on the connecting flange/flywheel for two consecutive crankshaft revolutions, DTC 2-1-4 is set.

Substitute value
^ None.

Fault sources
^ Loose contact in the wiring or splices.
^ The wire's insulation is damaged.
^ Contact resistance in the connections.
^ Damage to the connecting flange/flywheel.
^ Defective Engine Speed (RPM) Sensor.

Fault symptoms
^ Engine is very rough and jerky.