P0337 OBD Trouble Code

1 result found

P0337 - GM
Type Powertrain - Ignition System or Misfire - ISO/SAE Controlled
Description

CKP Sensor Circuit Low Frequency Conditions
Cause

Engine speed below 4000 rpm, MAF input 5 g/sec or higher, then the VCM detected that the CKP REF duty cycle was over 50%, or that the ratio of High REF to Low REF pulses was less than 1.8

Try also: https://www.obd-codes.com/p0337