Cold start problems

[ace]

Hi,

I own a 96 e36 318is stick shift, lately Ive had problem when i start the car in the morning, when the engine is cold! The idle is not stable, it keeps dropping n i have to rev to keep the engine from switchin off.

Once the engine heats up, everything is back to normal.

Is this a problem with the Air mass meter? if so do i have to replace it or can i repair it?

Hope this wont cost me too much!!

Thanks for the input!

Cheers!

ace

 

[Blake2043]

Hey my car has been doing that too. Anyone know how to fix it?

 

[bmwultdrivinmach]

that happens with me as well .... except it revs it self to keep from shutting off

 

[kouk]

Well,I had the exact same problem for 2 winters!!!

After changing almost everything (ICV,AFM,DME,sensors for water temp and air temp,fly wheel sensor etc) I checked the fuel pressure regulator!

In my E36 320 it should be 3.0 bar (+-0,2)!And it was 3.7 bar (+-1,4)!!!!

Once I've changed it everything is fine!!!!It starts perfectly!!

During my search I've discovered that there was a particular Technical Service Bulletin by BMW for car's that went to the States and were built previous than November 1994,that need the ECU upgraded!!

The symptom was a lot of fuel that caused the spark-plugs to get wet!Especially in temperatures betwwen -2 and 7 C!

So,check the fuel pressure!Also clean the AFM if you use an aftermarket air filter!

I hope I was of help!!