Urgent Need Help! Audi 2015 Q5 3.0 Supercharged Misfiring on cylinders 4,5,6
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Urgent Need Help! Audi 2015 Q5 3.0 Supercharged Misfiring on cylinders 4,5,6
I took my car to the mechanic to change the valve cover gaskets, 1 day later i got check engine light "cylinder misfire 4 5 6" I had him replace the spark plugs and the ignition coils and he double check the work he did. The misfire happens when starting the car 4/10 times. Sometimes starts off just fine and other times it will be misfiring and engine shaking. Fuel pressure is 3700 kpa. Very slight power drop when accelerating 2500-3500 rpm ocationaly. Problem tends to be more frequent when car cools off slightly
Car has 110.000 miles, i had the pcv replaced and did carbon cleaning at 95.000 Car also loses small amounts of coolant and burns oil 1 qt at 2000 miles.
Car has 110.000 miles, i had the pcv replaced and did carbon cleaning at 95.000 Car also loses small amounts of coolant and burns oil 1 qt at 2000 miles.
AudiWorld Newcomer
Joined: Jul 2018
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I took my car to the mechanic to change the valve cover gaskets, 1 day later i got check engine light "cylinder misfire 4 5 6" I had him replace the spark plugs and the ignition coils and he double check the work he did. The misfire happens when starting the car 4/10 times. Sometimes starts off just fine and other times it will be misfiring and engine shaking. Fuel pressure is 3700 kpa. Very slight power drop when accelerating 2500-3500 rpm ocationaly. Problem tends to be more frequent when car cools off slightly
Car has 110.000 miles, i had the pcv replaced and did carbon cleaning at 95.000 Car also loses small amounts of coolant and burns oil 1 qt at 2000 miles.
Car has 110.000 miles, i had the pcv replaced and did carbon cleaning at 95.000 Car also loses small amounts of coolant and burns oil 1 qt at 2000 miles.
Thread Starter
AudiWorld Newcomer
Joined: Mar 2024
Posts: 2
Likes: 0
Checked all connections everything is torqued down. I noticed car misfires only when fuel is less than 3/8 of a tank full. Ocational power drop under engine load is still present at full tank.
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