Stevebfl

I am back with some time to work on the car (had REAL WORK issues to settle).

Looking back at my 15 minutes of joy when I replaced the fuel pressure regulator with a used one, I am thinking that the used one has a stuck diaphragm causing excessive high fuel pressures (hence super rich condition).

I still have the EHA off, but car starts without accelerator/1st try in the morning!

When warm, needs the accelerator while cranking to get the engine to catch.

When cold, idle is steady and car is very responsive.Still smokes lightly.

When warm, car feels reluctant to accelerate (surging).And if I step hard on the accelerator, smokes REALLY bad and struggles to accelerate.On inclines, it struggles badly if the current speed is low.

Does the basic operation of the fuel pressure regulator vary with temperature?As I have the EHA off, all sensors are bypassed so I doubt if this has any corellation to my problem.

The techs here wanna go straight to a fuel distributor replacement without any diagnostics, which pisses me off (in principle and also because the FD is a very expensive component).

I will be getting my hands on the 190e workshop CD soon and I hope to get more help from it.

I appreciate your patience, Steve.

Meanwhile, I am stumpped...