What does code P0673 mean?

What does code P0673 mean?

The P0673 code is a generic powertrain code related to issues with a computer output circuit. In this case, it means that an issues has been noted with the glow plug circuit in cylinder 3 of your engine. Codes related to the P0673 include: P0670: Glow Plug Module Control Circuit.

What is glow plug circuit open?

OBD-II Code P0673 is defined as a Cylinder 3 Glow Plug Circuit/Open. The Glow Plug is used on diesel engines to preheat the cylinder before the engine is started. If the engine control module (PCM) detects the glow plug for cylinder three is not operating properly, the PCM will set code P0673.

What does cylinder 3 glow plug circuit open?

What Does the P0673 Code Mean? Diagnostic trouble code (DTC) P0673 stands for “Cylinder 3 Glow Plug Circuit Open.” Glow plugs are typically controlled by the powertrain control module (PCM), which also monitors coolant and intake air temperature.

What is code P0678 mean?

The P0678 code is a generic OBD-II trouble code indicating a problem with the glow plug circuit in cylinder number 8. Glow plugs are used in diesel engines to help warm the engine to aid ignition. The powertrain control module (PCM) helps control this heat.

What is the firing order on a Duramax diesel?

The firing order for a stock 6.6-liter Duramax diesel is 1-2-7-8-4-5-6-3.

How do I know if my glow plug controller is bad?

What are the symptoms of a defective glow plug control module?

• White exhaust smoke – a defective glow plug will cause diesel to leak into the exhaust where it burns.
• Hard to start – this could mean the engine is slow to start in warm weather or fails to start in cold weather.

Can I drive with a glow plug problem?

As you know, the diesel glow plug plays a vital role in making this ignition a success. If the plug is not functioning properly, there will likely be a misfire during ignition. You may still be able to drive your vehicle, but you will experience a downgrade from its normal performance.

What causes number 2 cylinder misfire?

There are many factors that can cause a cylinder 2 misfire—the most common of which are the following: Fuel delivery issues (e.g., a faulty fuel injector or damaged injector circuit) Ignition system problems (e.g., a failed coil pack or worn spark plug)

How do you know if your glow plug controller is bad?