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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > new DME= quite exhaust



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      12-29-2012, 01:56 AM   #1
skatenc123
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new DME= quite exhaust

ok guys. so 2 weeks ago my dme fried (msd80) (i8aos) and now i have
(msd81) (ije0s) reflashed to cobb stg2+agg st. and now my exhaust sounds super quite as in it barley gurlgles or anything. also the engine/turbo seems to be much louder. not sure if im just not used to it now or what. i have cpe downpipes and hks exhaust fully catless.
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      12-29-2012, 11:19 AM   #2
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Sounds like the new ECU might have a different software version on it, that changes the wastegate position during idle and low throttle. Kind of like lagfix settings on the JB4
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      12-29-2012, 11:55 AM   #3
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software definitely changes the WGs positions and would make it louder or quieter.
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      12-29-2012, 03:14 PM   #4
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oh alrite thanks guys.
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      12-30-2012, 06:15 PM   #5
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How much did it cost you to replace the dme
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      12-30-2012, 06:33 PM   #6
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Quote:
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How much did it cost you to replace the dme
a little under 2k with coding. and some miscellaneous little things.
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      12-30-2012, 10:15 PM   #7
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How many miles on the car, dme should be covered under the 7/70000 emission warranty.
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      12-30-2012, 10:34 PM   #8
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Quote:
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How many miles on the car, dme should be covered under the 7/70000 emission warranty.
61k and im FBO. and warrenty was previously flagged. and also i think its 8/80000 emmission warranty.
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      01-25-2013, 04:57 PM   #9
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i'd go with the wastegate theory
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      01-25-2013, 05:14 PM   #10
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It is most certainly is the wastegate position changes.
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