Mercedes Benz repair: 190E crankup problem, fuel pressure regulator, engine cranks

Question
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Followup To
Question -
Hi;I have a big problem with my Mercedez 190E/1990.When my car is cold I have to start my car for about 5 minutes to crankup the engine.If I press the pedal the problem goes worst.I have to leave the fuel pedal intact.And if I left my car for about 5 minutes I have to start my car for about 5 minutes again to crankup the engine.I replaced the fuel filter but the problem persist.I am really appreciate any help,and Im sorry for my bad English.



         Maichael
Answer -
1990 190E
Trying to understand language used.

#1. The engine will not crank for five minutes?
#2. Engine starts and runs bad = touch pedal and it dies?
#3. Engine cranks many times over five minutes, then starts?


The Engine cranks many times over five minutes,then starts but if I press the pedal the engine dies.But,if I leave the engine on for about 10 minutes the car works great without any problem.But If I turns off the engine for about 20 minutes,I have to crank the engine many times again.And Thanks Again

Answer
What engine?
190E 2.3 engine
190E 2.6 engine
How many miles on engine?
Geographic region where car is, State is needed for weather/climate?
You need local help, what is the nearest city location, and I will try to find you a service garage that can work on your Mercedes.

Best guess at this point:
#1. Check the Cold Start Valve.
#2. Check the Ignition Coil
#3. Check the Overload Relay
#4. Fuel Pump Relay
#5. Catalytic Converter

Here are other possible issues:

Air Temp. Sensor
Altitude Sensor
Cold Start Valve O-Ring
E.H.A. Valve
E.H.A. Valve Seal
Fuel Accumulator
Fuel Injector
Fuel Injector Seals
Fuel Pressure Regulator
Fuel Pump
Fuel Pump Check Valve
Fuel Tank Vent Valve  
Idle Control Valve
Oxygen Sensor
Throttle Body Gasket
Water Temperature Sensor - for computer (not gauge)
Distributor Cap
Distributor Rotor
Ignition Wire Set
Reference Sensor