Air flow meter, lose wire, Please Help!!!

[320stu]

Ive got a 1990 316i and on the air flow meter there is a lose wire with a plug on the end and im not sure if its ment to be pluged in anywhere??
I cant see anywhere for it to go?
I have a picture of the engine and the wire but dont know how to put a picture on here, If anyone could post the picture for me???
Please Help!!!!

[Chris-W]

Don't worry about it - it's only used when the car has a cat.

[320stu]

Don't worry about it - it's only used when the car has a cat.

Thanks, it was driving me mad trying to find the other end!!!

[Brianmoooore]

On your car the vent pipe from the fuel tank ends in the open air inside the reinforcement for the left hand front suspension strut.
If it was an emissions equipped version, as well as having a lambda sensor and a cat in the exhaust it would have a carbon canister connected to the end of the vent pipe, with a pipe going from this to the inlet manifold.
(You should also have this pipe hanging off your inlet manifold with a bung in the end.)
On the emissions equipped car there is a solenoid operated valve in this pipe, and your mystery lead is to work this.

[320stu]

[quote="Brianmoooore"](You should also have this pipe hanging off your inlet manifold with a bung in the end.)quote]

Thanks, I can sleep tonight That was going to be my next question but
did'nt want to keep asking questions incase people started pissed of with me!!

Noticed this wire and pipe with the bung in when i was cleaning the car and started to worrie id been sold a dud!!

Thanks for your help
Stu

[Brianmoooore]

Both these come up on the zone about once a week! Why BMW didn't come up with a bung that fits the manifold stub instead of at the end of the pipe is one of life's mysteries.

[320stu]

Brianmoooore, Is there anything about E30's you dont know!!

Looking at all the other topics you seem to have all the answers!! do you work for BMW??

Handy bloke to know!

Stu

[Brianmoooore]

Brianmoooore, Is there anything about E30's you dont know!!
Stu

Quite a bit! I posted the other day that I'd learnt three things about E30s that day that I didn't know before.
Current thing I don't know is why my 325 touring runs fine on LPG, but has developed severe kangaroo tendencies on petrol on part throttle only.
Can't be anything ignition related, as LPG puts much greater demands on the ignition system than petrol.

[320stu]

Brianmoooore, Is there anything about E30's you dont know!!
Stu

Quite a bit! I posted the other day that I'd learnt three things about E30s that day that I didn't know before.
Current thing I don't know is why my 325 touring runs fine on LPG, but has developed severe kangaroo tendencies on petrol on part throttle only.
Can't be anything ignition related, as LPG puts much greater demands on the ignition system than petrol.

Well you've helped me loads tonight thanks
hope i can be of some help to you in the future
Stu

[old_skool]

do you work for BMW??

Nope, Brian won't like me telling you this but he's really an alien spy from a super intelligent world in a galaxy a million light years away. He was sent help dumb ass mere mortals like me to understand German engineering.