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The misfires and other problems on these cars is exhausting. The amount of time I spend replacing coils, plugs, injectors, vanos, water pumps, crank position sensors is 10 times what I spend on my FORD Mustang.
Mine is now misfiring mostly under light load or at idle. Most of the time it behaves well under WOT conditions.
I replaced the valve cover gasket (was leaking pretty bad) all the plugs, coils and the exhaust Vanos. I cleaned the intake Vanos. It is better, but the car still misfires pretty bad sometimes. It doesn't seem to be consistent. Some days are good and some are no so good. I think hot days seem to be the worse.
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2008 335xi - JB5 ISO e50, VFSR catless DP, DCI, VFSR FMIC. Fuel it stage 1, VMR V710s. 407/446 rwhp/rwtq.
2004 Cobra - Basic bolt ons with a tune. 450rwhp/rwtq450. Port coming soon.
2013 X5 50i - muffler delete, xHP tune, ESS tune on the way.
2016 Mustang GT Roush Phase 2 with VMP 767 HP kit.
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