does anyone know how to test relays to see if they are good or not...i have a 420a and need to check the fuel pump relay and the asd relay...thanks guys...

 

Provide power to them... they clicking?? They work.

 

so what just turn the key to on and if they click then they're good??

 

I would think so, as soon as the car turns on (acc) Id imagineit would power up the fuel pump thru the relays... they also (well my 2G especially) tend to make a high pitched humming sound from the pump itself... Hope this helps, lol...