hi guys! I am having problem with my 88 190e , 2.3l. Vehicle can't start. There's spark , compression is ok, but no or little fuel at times fuel to injectors. Fuel pump relay is ok. Fuel pump is good. It has fuel to Fuel Distributor Unit, but somehow--no fuel coming out of the poppet line to injectors or at times --fuel to injector lines a little. Thank you in advance for you ideas!

 

If you have a fuel distributor on your model, there is a fine mash screen filter where the fuel supply line screws into distributor. Take the line of and look inside for contamination of rust or dirt particles. Ones you have it off, stick it to container and check the fuel valume delivery, it should pump 1 quart/liter of gas in 30 seconds. This will test your pump and filter. Good luck.
Bernard