In Reply to: 1988 E30 M3 Stumbling problem posted by Tim Suddard on August 06, 2000 at 10:50:42:
1) test the secondary fuel pump in the gas tank - u might be getting low fuel pressure coz the auxilary pump is not working. u can also test the relays if they are still ok. It sounds like the transfer pump is gone...
2) any leaks in the exhaust? check the bolts on the exhaust if its leaking. I saw u guys had to buy it with that nasty patch on the exhaust - u guys should check the whole system for leaks.
3) ignition coil? did u guys check the voltage its giving out?
these are the things on the top of my mind. am looking forward to ur next update on the gr website.