P0374 OBD II Trouble Code Timing Reference High Resolution Signal A No Pulses

How to diagnose, repair, and info on causes of a P0374 engine code which pertains to the A timing refence high resolution signal, or engine position sensor signal, which the PCM has detected an absence of pulses. Also includes links to relevant forum topics on the code.

Symptoms of P0374 OBD II Trouble Code

Illuminate check engine light
Hard starting/no starting
Poor engine performance

Common Causes of P0374 OBD II Trouble Code

Faulty sensor
Wiring problems
Reluctor wheel damage
Contaminated oil
Faulty PCM

Severity of P0374 OBD II Trouble Code

The severity of these codes is moderate to severe. Symptoms of a P0374 engine code may include:

P0000 OBD II Trouble Code No Diagnostic Trouble Codes Found

P0001 OBD II Trouble Code DTC Fuel Volume Regulator Control Circuit/Open

P0002 OBD II Trouble Code DTC Fuel Volume Regulator Control Circuit Range/Performance

P0003 OBD II Trouble Code DTC Fuel Volume Regulator Control Circuit Range/Performance

P0004 OBD II Trouble Code DTC Fuel Volume Regulator Control Circuit Range/Performance

P0005 OBD II Trouble Code DTC Fuel Shutoff Valve A Control Circuit/Open

P0006 OBD II Trouble Code DTC Fuel Shutoff Valve A Control Circuit Low

P0007 OBD II Trouble Code DTC Fuel Shutoff Valve A Control Circuit High

P0008 OBD II Trouble Code Engine Positions System Performance Bank 1

P0009 OBD II Trouble Code Engine Positions System Performance Bank 2