P0672 Code - Cylinder 2 Glow Plug Circuit Fault

What Does P0672 Mean?

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. When you see P0672 engine fault code on your engine code reader this description will help you.

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What are the common causes of P0672 ?

• Faulty cylinder #2 glow plug
• Cylinder #2 glow plug harness is open or shorted
• Cylinder #2 glow plug circuit poor electrical connection
• Faulty glow plug module

How do you troubleshoot P0672 ?

With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors.



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