Fuel Pump Check Valve

[afroken]

first off i just wanted to say how much of a help this board has been, thanks guys.
heres my problem. after sitting overnight my e28 doesnt start right up, it takes about 2 or 3 times, and i feather the gas a bit to keep it from stalling, but once its up it runs brilliantly except for an eratic idle and the sickining smell of gas. ive been researching and have heard about the fuel pump check valve, supposedly a $4 fix. i was wondering if anyone could tell me exactly how and where to install this part. heres the part number for reference...16 14 9 068 988.
thanks,
afroken
1983 528e auto

[billB]

Low fuel pressure can cause this lean misfire when idling, which causes too this too much increase in HC emissions. Did you try to check your fuel pump relays?
billb

[bad man working]

This sound more like a fuel leak because of the smell check all the feul hoses and clip the hoses crack and the clips work loose the leak will drop feul pressure and stop it starting first time.

[billB]

bad man working
good point leaking will have pressure reduction indeed

[afroken]

thanks for all your help guys. i finally figured it out. the cold start valve is leaking gas from the seam where the actual spraying device is attached to the electric connector...replacing.
afroken
1983 528e

[billB]

Afroken
glad it is sorted out