BMW 320i Gas Problem

[rOMa]

hi everyone i realy like this forums and nice to be here with you all
well i just bought a new bmw 320i model 1994 from japan ok
well when i took the car it was fine but them after a couple of days the car begun to shut down alone wheni stop in a signal ok
and when i try to turn it back on it sometimes starts fast and sometime it takes time i have to leave it for 5 or 10 min.

and in the same time while moving it just keeps cutting as if no gas is reacing the engine

so i did change the fuel pump and the fuel filter and also the sparks and i did put this injector cleaner.

but still the same problem came out after 3 days again
i am thinking maybe its a sensor problem or something or maybe overheating problem. there is just something i noticed the the engine temp when i start the car is in the middle always its never below it but i will get sure of it

i hope someone can help me

[3050rpm]

Uh, I wonder if you have a vacuum leak, your idle control valve is in need of cleaning, your Mass Air Flow sensor (or whatever it's called) may be messed up. What about the air filter?

[rOMa]

thanks for your help
but i am new in bmw's so if u can just tell me where they are located
i know the Mass Air Flow sensor there is a jac that i tried to diconnect and tried the car seems like the power goes up and down and when i turn the ac on the car shuts i hope thats what u mean . if it is i will go check it.
and the air filter i will change it and give a try

but what i dont understand is the vacuum leak ? can u just be more specific ? or how to check if there is a vacuum leak


thanks again for your help

[Dudesky]

I highly doubt it's a vacuum leak, but the ICV or O2 sensor might be a possibility. More likely, I have a feeling that it's the fuel pressure regulator. I would take it to a shop and have a fuel pressure test done. As far as the temp gauge, it's normal- it's supposed to be in the middle.

[rOMa]

thanks for your support guys
now i just need 1 more support and i hope its the last
i went and checked the cars computer ok and it showed 3 sensors fault the mas air and athe camshaft and the cranck
but he asked me if the mickanic unpluged anyof them i told him yes the mass air sensor and pluged it again he told me no he will do something and them i will have to go to him again next day to recheck the system
and the second time it showed only the camshaft sensor timing something like that

so is this right ? and is it possible that this sensor is the reson for the car cutting and turning off ?

[rOMa]

ok i got everything fixed the problem was the camshaft sensor i changed it and everything is going fine now thanks for ur help