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Rail/System Pressure P0087 & Multiple Cylinder Missfires HELP

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Old 11-28-2017, 03:09 PM
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Default Rail/System Pressure P0087 & Multiple Cylinder Missfires HELP

Hello Guys, I have a S5 2010 V8. It all started with Cylinder 5&6 misfiring. So I changed the coil packs. After this I turned on the engine and it took a few cranks before it started. Now it shows Cyl 5&6 misfire, Cylinder Disabling P130A, and Rail/System Pressure P0087 . Engine is very difficult to start and when it starts it runs very rough. I think Cyl 5&6 and disabled. I cleared the faults and the same come back with the same simptons. Any help will be greatly appreciated.
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Old 12-07-2017, 12:17 AM
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hello, i had a similar problem with the s5 4.2, i swapped the spark plugs, coils, injectors and no luck, i end up removing the valve cover and found the valve spring in 2 pieces. you can always check the fuel pressure 2.
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