Fuel injection problem i think.

i have 1975 BMW 2002 with fuel injection from a 1985 318.

i think im haveing a fuel delivery problem. Car starts fine but i cant rev her past 2500, with my foot on the gas she just pulses between 2200 and 2700...up down up down. I can drive her fine as long as i dont rev past that magic number.

Any Ideas?

im having the same problem with my 318 and its doing my head in!!!!!!

wont help much!

The later M10 motors used a different distributor but the same rotor and cap as the earlier 2002.

You may have a rev limiting rotor installed.

If it just limits the RPM and does not cause any backfiring or smoking it is electrical.

Later,

have you tried new fuel filter? or unplugging air box?

Mass air flow meter was bad.