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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 > engine lights after d/p install



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      08-30-2013, 02:57 PM   #1
zz10
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engine lights after d/p install

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so i install the catless d/p and the next day engine lights up with the half engine icon: power reduced engine fault. And white smoke coming out from exhaust.

read from jb4:
2AF4
2AF5; which are the catlyic convertors, fine
3100: limp mode boost failure

so mech changed one boost convertor. car drives normally, no white smoke till after 2nd day,
same thing happened, same codes, white smoke comes out. After putting auto-clear car goes normally but cant seem to go beyond 3rpm. but no white smoke.

and mech changed the other boost convertor (2 in total), car drives normal till 3 day same thing happen again.

does anyone expereince this?! on the way to forgo the more responsive n hp gains by switching back to oem d/ps in order to have a spirited normal daily drive w/o the darn engine lights and sound.
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      08-30-2013, 02:59 PM   #2
zz10
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forgot to add in, i installed the oil catch can same day with the d/ps.

mech checked the lining and also the vacum hose so its fine...

the white smoke i meant, not condensation or blue smoke. just white, with the burning oil smell.
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