M40 BMW 318i problem

[jamie bayley]

Hello,
I have this problem any help welcome.
When driving ,occasionally the engine will not accelerate, (it runs perfectly at idle only). Switching the ignition switch off and then on immediately fixes the problem. The engine is also slow to start,hot or cold
I have replaced the Fuel pump relays,
the distributor cap,the rotor arm and thought I had the problem beat ,but its back!
Also the fault is immediately cured by simply pulling and resetting the fuel pump fuse.
The fuel pump was replaced 6 months ago.
Could it be the pressure regulator or filter?
thanks :

[SWISS]

Hello,
I have this problem any help welcome.
When driving ,occasionally the engine will not accelerate, (it runs perfectly at idle only). Switching the ignition switch off and then on immediately fixes the problem. The engine is also slow to start,hot or cold
I have replaced the Fuel pump relays,
the distributor cap,the rotor arm and thought I had the problem beat ,but its back!
Also the fault is immediately cured by simply pulling and resetting the fuel pump fuse.
The fuel pump was replaced 6 months ago.
Could it be the pressure regulator or filter?
thanks :

try your t.p.s sounds like it(throttle position sensor or mass air flow sens.)then agian
its missing two cylinders! try a 325i im sure that will fix your accelleration prob :slap: