The ignition distributor is fine, I'm getting good spark on all cylinders, The cap, rotor, wires and plug are new. I checked compression and all the cylinders are running at between 100 and 125psi warm.
The low voltage is on the wuv, cold start valve, air slide and the temp time sensor connections. I unpluged the cold start valve cold and there is no change in the idle. I am getting fuel to it just no delivery. I also checked the lamda control unit for power going to it and none of the terminals are hot with ignition on, yet the car will not run with the lamda unit disconnected.
I've gone through wiring diagrams and cannot track down a relay for the lamda control unit. By the way the lamda unit is the control unit behind the glove box.
My past experience with older CIS benz's have an overprotection relay that supplies power to the lamda unit and fuel pump.
Thursday, November 25th, 2010 AT 3:28 AM