Thanks for your threads.
Please, I need your help.
My 190E, 2.6 L, 1988 has a lot of problems.
The Voltage out going from O2 sensor is 0.8 V. I suposse that it is OK.
The Voltage to the O2 is the same thart the battery almost 14.0 volts. I suposse that it has to be 50%.
The voltage in the in ping Nš 3 of the socket is 14 V, same that the battery. Messured with the DUTY CICLE is 100%.
The gas milage is too bad, almost 4 kilometers per liter.
The RPM in idle is 900 but when shift to Drive lost almost 300 RPM.
I'd appreciate your recomendations.