Quote:
Originally Posted by Yaboyma
I have a 1991 190e mercedes benz that I have been trying to work on for a while now. The problem is that it will crank, but only run for about a minute and a half to 2 minutes, idles down, revs back up then shuts off! It does this over and over. I have changed the fuel pump, fuel filter, spark plugs and spark plug wires and now it runs a minute longer but does the same! Can someone help me out on what to do next?
|
Check the dist. Cap and rotor. I seen the rotor get.erroded away and the center tip on the cap cap be worn or. Burnt.
just check the plugs.see.if they look okay.
From there you need to see.if the lambda is ossilating. On the 91 2.3 L they haves intake manifold heater between the intake where it meets.the head.they have a1 pin connector going to it.make sure your getting voltage to the plug if so ohm out the.heater on the pin to ground.and see what the ohms.are report back with have to look.for.values it shouldn't be shorted nor.sure.to have Mega ohms.
Also has the car.sat.for.a.while? And is the ABS or.antilock light on? Of so you have a bad or.going out over voltage relay.
I.would.check the fuel pressure and differential pressures. If you have a way to check it?
LMK. I'd.like.to help if I can.its.hard when the car.is not.in front of me.