What does it mean when a glow plug circuit is open?
OBD II fault code P0671 is a generic code that is defined as “Cylinder 1 Glow Plug Circuit/Open”, and is set when the PCM (Powertrain Control Module) detects an electrical defect/failure/malfunction that causes a break in continuity in the control circuitry of the glow plug on cylinder #1.
What is the glow plug circuit?
A glow plug is a device utilized in diesel engines to heat a cylinder head when starting up a cold engine. The diesel engine uses the high level of heat through compression, which quickly ignites the fuel. Each cylinder of the engine has a glow plug to heat the cylinder head.
Where is 7 glow plug on Duramax?
On a Duramax #7 is the closest cylinder/glowplug to the firewall on the passenger side of the vehicle.
Are there glow plugs on a VW Passat?
Yes, the glow plugs are aftermarket…………but they are working, so like you said a glow plug problem won’t be manifesting as smoke five minutes or more. Can you tell me the type and quanties of sensors on this engine, and where located, etc. and what might damage them.
What does glow plug do in diesel engine?
As you already know, a glow plug is a heating device in each cylinder of a diesel engine that helps the engine to start. But how is the overall operation of your glow plugs monitored and controlled?
How does the glow plug relay work on a car?
When the engine management computer senses the engine is cold through the use of its oil and transmission sensors, it makes the decision to assist the engine in starting with the use of the glow plugs. It grounds the glow plug timer module which in turn grounds the glow plug relay that sends power to the glow plugs.
What are the symptoms of a defective glow plug?
In addition to watching out for the glow plug light on your dashboard, here are some common symptoms of a defective glow plug or glow plug control module: White exhaust smoke – a defective glow plug will cause diesel to leak into the exhaust where it burns.