Hi everyone, new to the site and just starting to look into a problem with my '83 633: Car was running fine after new brakes/clutch cyl laid it up for a while. Driving home engine dies. No fuel to rail. Checked fuses etc. replaced bad pump relay- still no go with the key (jump the relay and the pump works fine) Voltages to the relay seem low, checked grounds...now tracing wires on pg 111 in my well worn "1983 BMW 633CSi Electrical Troubleshooting Manual".

While I dig into this: if this problems sounds especially familiar to anyone, any help would be appreciated.