BMW Questions? Ask a BMW Repair Expert for Answers.
Can I have the last 7 digits of your VIN #
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The valve directly in the center of the picture with the hoses going to it is the running losses valve (Know as the 3/2 Valve in the BMW world)
It function is to return the fuel that is not needed at the fuel injector rail, straight back to the fuel tank for emmissions purposes. The used to have all the fuel go up to the fuel rail and what ever wasn't used would return to the fuel tank, but the fuel was being heated by the engine which causes more emmissions gases.
So they used this valve to return the fuel that was not being used back to the tank so it would not be heated by the engine.
You will need to check for power and ground being supplied to the valve and see if the valve is activating, if it is not it will need replacement.
If I have answered your question i ask that you please accept.
you did. can i ask another?
What is your question?
when i start the car cold. and let it idle it will misfire. check engine light comes on and the code is for #5 misfire. if you start it could and drive off without letting it idle much of start it hot it is fine. when it is misfiring it will not stop on its own, but at any time you can shut it off and restart it and the light gos out and it runs normal. any ideas?
Yes but since this is a new question you will need to accept this answer 1st, and then you can submit your new question and if you would like me to handle your question you can address it to me. If you would like any of the experts to address your question you can just submitt the question without addressing it to me. I would recommend that the value of this question would not be the same as this question due to the type of problem it is.
sorry first time!
No problem at all we are here to help with any question you have.
Thank you very much,
I will always leave positive feedback all I ask for is the same.