What are the possible causes of DTC P130B?
NOTE: The listed causes may not be a complete list of all potential problems, and there may be other causes.
- Faulty knock sensor
- Knock sensor harness is open or short-circuited
- Poor electrical connection in the knock sensor circuit
How to repair DTC P130B?
Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins. Search for P130B questions and answers:
What are the possible symptoms of code P130B?
- Check engine light on (or engine maintenance warning light soon)
What does code P130B mean?
The knock sensor contains a piezoelectric crystal. When combustion knock occurs in an engine, a distinct noise is produced. The sensor converts the vibrations from this noise into an electrical signal. The engine control module (ECM) uses this signal to delay ignition timing and restore normal combustion in the affected engine cylinder. The knock sensor may be powered by a reference voltage from the engine ECM. This allows the ECM to monitor the continuity of the knock sensor circuit.
The ECM monitors the knock sensor. The ECM sets the diagnostic trouble code (DTC) when the knock sensor does not meet factory specifications.