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The DDE light came on after running out of diesel. Car runs fine but how do I get rid of the light?

Car is a 2003 E46 320d

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 142 Answers

SOURCE: mistakinly put 50 litres diesel in my almost empty petrol tank

The first thing i'd tell you is to not run the engine at all before fixing this if possible. Diesel fuel doesn't burn very good in a gasoline engine, if at all... There is not enough compression in a gas engine to get the diesel hot enough to burn, even with a spark plug.

There is a few ways to go about this but the easiest one is to find and disconnect the line coming from the gas tank to the engine, as close to the fuel pump as possible (preferably before the filter) and route it to an empty container, then jump 12V to the fuel pump motor terminals, or jump the fuel pump relay terminals (to get the pump running) and let it pump the diesel fuel out in the container...

As a precaution I'd change the fuel filter after this, fill the tank back up with clean gasoline, and give the car a good run... You can expect the engine to smoke and run bad for a little while, as there will still be a little diesel going through.

As for the cost to get it done, I really couldn't give you a straight answer... They could do it like I said or another way (drop the gas tank...) It's not that hard to do if you do it yourself or find someone you know who can do it or a good "backyard" mechanic, but I'm sure some of the shops out there could write up a nice repair bill for this...

Posted on May 08, 2009

bnachos
  • 38 Answers

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....

Posted on Aug 01, 2009

  • 274 Answers

SOURCE: peugeot 306 diesel red stop light is on and both fans run

there are 2 relays inbetween the 2 fans behind the front grill the wiring to the relays tend to corrode.
what you need to do is replace both relays and the wiring conectors

Posted on Dec 07, 2009

  • 25 Answers

SOURCE: The car ( 2003 Escalade)runs fine but check engine light came on.

Hooking a code reader onto the OBD II port will give you a code so that you can figure out what is wrong with it. It is most likely an emission code which won't hurt the performance but possibly the gas mileage

Posted on Dec 15, 2009

  • 645 Answers

SOURCE: I have a 2003 Ford F350 7.3 diesel engine,Engine

you may have two hoses that hooked into your radiator that help cool you oil. If the radiator breaks down inside than you need to replace the radiator. The radiator probably has four tubes or hoses bolted to the tanks. Two four transmission two for cooling oil. If so you need to replace the radiator and flush out the cooling system and clean out the water jug. Do not wait long cause you could clogg your heater core with oil. and also cause the vehicle to over heat and that is not good for diesels.leave comment

Posted on Jun 30, 2010

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Why is it you guys are not letting us know your names lately? The DDE warning light is related to the Digital Diesel Electronic injection system, hence the black smoke, as the management system is injecting too much fuel into the combustion chambers. Take the vehicle for a digital diagnostic scan. Safer to find out the actual problem before continuing with it on the road. Regards John

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So the only thing now is the light staying on ??
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That should re-set everything..

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