I'm pretty sure it's a AW70L with the lockup torque converter. How do I verify this?

It is indeed a Regina system, I didn't know that Regina cars were only supposed to have one pump.

Thanks for your help, lummert and 93Regina!

Hello all, I recently diagnosed and replaced a bad fuel pressure regulator on my 1991 740 wagon (b230f), and now I am trying to change the fuel filter. I know that I am supposed to remove the fuel pump relay, then turn on the engine to empty the lines, then disconnect the filter. When I removed the ...