mercedes question
 

hi... i have a question, how to tell if one of the fuel pumps has stop working on a 93 mercedes 190e and what will probable happen that i will notice thanks.

If you have 1 of 2 out its noisy, lack of acceleration, use and amp meter to see how many amps are being used on each individual wire,4 amps? maybe each pump, or you can disconnect the ground wire 1 at a time to see which one isnt running,or volume test approx 1 litre in 30 seconds into a container with pumps bridged to run