Cyclinder not firing

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jtbrown
Posts: 65
Joined: Sun Aug 17, 2014 7:40 pm
I drive a: GT 2.0 TSI
In: Candy White
With a: DSG box
Options: Panoramic Sunroof, 19" Lugano Alloys, Bi-Xenons, Cruise Control, Truffle Vienna Leather Interior, Parking Sensors, RNS 510, 12 Way Adjustable / Heated Seats, Winter Pack, Bluetooth Phone kit

Cyclinder not firing

Post by jtbrown »

Today my car started misfiring on the way to work. The EPC and engine management lights came on, and I could smell un-burnt fuel.

I've taken the spark plugs out and one of them was covered in petrol. I've tried swapping the plugs around, and bought a new coil pack and swapped the coil on the cylinder with the unburned fuel. Even with a different spark plug / coil that cylinder is still not firing.

What other causes are there? I'm considering replacing the injector for that cylinder if it's not a huge job / expensive. I have an generic OBD2 reader at home and I'll attempt to get the fault codes later this evening after I've collected it.

Thanks in advance if anyone can help!
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jtbrown
Posts: 65
Joined: Sun Aug 17, 2014 7:40 pm
I drive a: GT 2.0 TSI
In: Candy White
With a: DSG box
Options: Panoramic Sunroof, 19" Lugano Alloys, Bi-Xenons, Cruise Control, Truffle Vienna Leather Interior, Parking Sensors, RNS 510, 12 Way Adjustable / Heated Seats, Winter Pack, Bluetooth Phone kit

Re: Cyclinder not firing

Post by jtbrown »

For future reference if anyone has similar symptoms. My dad has managed to fix the issue, simply put fuel cleaner in it!
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Gazzagood
Posts: 524
Joined: Tue Apr 21, 2015 8:08 pm
I drive a: GT 2.0 TSI
In: Rising Blue
With a: Manual box

Re: Cyclinder not firing

Post by Gazzagood »

jtbrown wrote:For future reference if anyone has similar symptoms. My dad has managed to fix the issue, simply put fuel cleaner in it!
Are you sure that was a true fix? You might of had a weak spark and when turning the car off/on it is ok. It may come back. If that is the case I would suspect a bad plug or coil
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jtbrown
Posts: 65
Joined: Sun Aug 17, 2014 7:40 pm
I drive a: GT 2.0 TSI
In: Candy White
With a: DSG box
Options: Panoramic Sunroof, 19" Lugano Alloys, Bi-Xenons, Cruise Control, Truffle Vienna Leather Interior, Parking Sensors, RNS 510, 12 Way Adjustable / Heated Seats, Winter Pack, Bluetooth Phone kit

Re: Cyclinder not firing

Post by jtbrown »

Gazzagood wrote:
jtbrown wrote:For future reference if anyone has similar symptoms. My dad has managed to fix the issue, simply put fuel cleaner in it!
Are you sure that was a true fix? You might of had a weak spark and when turning the car off/on it is ok. It may come back. If that is the case I would suspect a bad plug or coil
I don't think it's spark plugs or coils because I'd tried swapping all of the spark plugs / coils around and it was the same cylinder not firing each time. Also noticed when i took the coil / plug for that cylinder out and turned it over it was sparking. Thought it was going to be a compression issue / bad injector but luckily we put fuel cleaner in and let it idle for a bit and it stopped misfiring. I'm not sure if this is a long term fix or whether i'll need to replace the injectors or take the car for a proper engine clean.
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