Bmw x5 2003 03reg diesel onboard computer says fuel inject.system when i acceleration is all the way down then is not driving same like before i have to stop and start ingine to come back to normal .

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

You can start by scanning your onboard computer system so you can find out what kind of failure of your fuel injection system has caused the light to come on.

Could be just a hiccup in the computer, get the parts store to scan it and remove the code to see if it comes back.

LEAKS AT THE INJECTION PUMP CAN BE COMING FROM DIESEL INJECTION PUMP DRIVE GEAR INNER SEAL.LOOK FOR LEAKS AT FUEL SHUT OFF VALVE AND COLD START VALVE.

diesel pump might not be working right. Try and check fuel pressure. I dont know if its turbo but if the turbo is failing then you will loose power

bmw 2005 55reg diesel onboard computer says fuel inject.system but starts and drives

timing diagrame pictures n47 engine

i would advise you take to a garage to have fault codes read. this could be a number of things. eg mass air flow meter, to catalytic converter. The best way to sort this is by interrogating the engines ECU.

It sounds like a problem with your computer or injection system. the computer controls the amount of fuel put in the cylinders when you step on the gas. But it sounds like your truck's computer is having problems controlling this and when you accelerate hard or are towing and step on the gas, the computer just pumps diesel into the cylinders which causes the rough running(i assume misfiring and what not) and the loss of power. But when your not towing or accelerating hard, you are better controlling the amount of fuel going into the cylinders so there arent any problems. Go back to the dealer and tell them there is a problem with the injection system and it adds too much fuel when you try to get a lot of power out of it.