BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Egr/injector missfire

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      02-10-2020, 07:30 AM   #1
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Drives: 318d
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Egr/injector missfire

Hi guys i am still trying to trace fault i have with my 318d n47 i have awful missfire type situation where car is undriveable only codes have now are 4b10 and 4b11 cylinder 3 and 4 are bad smoothness readings i tried swapping injectors around but still fault is 3 and 4 ( although did not reset or re code injectors to new cylinders) it runs very lumpy no nasty knocks or bangs tho anyone know if i can do egr test on ista i have electronic type, also can anyone explain what the actuator is for at bottom of egr cooler and what it does thanks
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