e36M42: engine jerks losing ignition resulting in stalling

[selespeed]

hi;

I have a very strange problem.

my car jerks frequently when running because it is losing ignition (no sparks) momentarily but this jerking becomes more frequent when I continue running the engine. a few minutes later, the engine would lose ignition completely and stalls on the road. then, cranking it will not restart the car. there's firing up but only for like 2 seconds and dies.

in order to make it fire up and stay, I disconnected the airflow meter. but as soon as I reconnected the air flow meter, it dies.

what is happening? why is the engine losing ignition when air flow meter is connected and decided to stay ok without air flow meter?

DME put out error code 100 (control systems error) - Amplifier 1 in DME Control Unit

so, in order to continue my journey home, I ran without the air flow meter. and the maximum I can do is around 150 kmh. but engine seems to be able to accelerate quite well.

this jerking feel (losing ignition confirmed) is the problem that has plagued me for a very long time. when I have the new air flow meter installed, it only runs for a few minutes with very frequent "jerking" and then the engine loses ignition completely.

my engine is a e36m42 april 1994 with its associated DME. I have these replaced NEW:

DME relay
ignition coil
ignition cable
fuel pressure regulator
fuel filter
air filter
crank position sensor
cam position sensor

this s a BIG headache that remains unsolved for a long time. Appreciate all you experts out there for your help.

Thanks.

teo

[Luccia at Pelican Parts]

Hello Teo - Go to this tech article: BMW E30/E36 Spark Plug Replacement | 3-Series (1983-1999) | Pelican Parts DIY Maitenance Article and scroll to the bottom where you see a comment box. Copy and paste your description above into that box and submit it. Our BMW guru will come back with some possible answers to your issue. Good luck!