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Old 08-28-2003, 10:06 AM
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Join Date: Jul 2003
Location: Tulsa
Posts: 304
Help :( Random Stalling going out of town

92 400SE has an intermittent rough idle and stalling problems.

It usually occurs shortly after reaching operating temperature. It may suddenly die at idle, be hard to restart, and then miss under load at lower RPM. Or it will start missing under load, refuse to idle, etc. These episodes may go on for half an hour and persist if the car is shut off and restarted. Then it will clear up and run well for some time.

I dont' get a check engine light. I've checked fuses in the Control Module. (NO OVP Module in 92 400se)

I've done a search on possible solutions.

I've called the dealer to see if they will read the engine scan codes but they are booked up due to the holiday weekend.

I've changed the distributor caps, rotors, wiring harness, sparkplugs. I'll be changing the following parts today.

Fuel Pump Relay
Fuel pump
Fuel Filter
Fuel Pressure Regulator
Ignition Coil
Air Temp Sensor
Oxygen Sensor

I called the local Autozone and they dont read engine scan codes on Mercedes. Any non MB that can read scan codes?

Thanks in advance for any suggestions.

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