P0677 Code - Cylinder 7 Glow Plug Circuit Fault

What Does P0677 Mean?

This code indicates that the PCM has detected a malfunction in the glow plug circuit for cylinder 7. Frequently, other glow plug circuit codes will accompany this code. Repair codes in the order that they appear.

engine code P0677	P0677 fix	obd P0677	dtc P0677
obd code P0677	obd2 P0677	P0677 car code	diagnostic code P0677
car code P0677	check engine code P0677	fehlercode P0677	P0677 fiat
codigo P0677	codigo falla P0677	P0677 kody b??dów	codigo de falla P0677

What are the common causes of P0677 ?

• An air leak forward of the DPF will change the sensor readings resulting in the code
• Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
• Fuel with a large percentage of sulfur will clog the DPF quickly

How do you troubleshoot P0677 ?

Common repairs for the P0677 trouble code include:

• Replacement of the glow plug in cylinder 7, or the other cylinders
• Replacement of the electrical components in the system
• Replacement of the glow plug timer or relay

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