DDE light on E46 stays on - 320D BMW Cars & Trucks

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Pedro

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Posted on Nov 25, 2014

Pedro

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Hi everyone, i have a similar problem, my dde light stays on but the car drives totaly normal...mechanic told that might be dde engine module, could it be?

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bnachos

38 Answers
Posted on Aug 01, 2009

SOURCE: Hi all,

First of all you need to check the engine code being "spit out". If you don't have a OBDII reader, go to your local garage and have it read.... typically pretty cheap. DDE light can be caused by:

Contaminated fuel.
Wrong Fuel.
Injectors leaking back excessive fuel to tank.
In-line fuel pump (There are two, so it's possible to still get fuel at engine but not enough pressure to run it)
DDE Engine module relay failed
Fuel rail pressure sensor

There are many more possible faults but I have listed the more common ones.
You really need to know the fault code to determine the actual source....

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DDE light on E46 stays on - 320D BMW Cars & Trucks

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