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1990 200e not working propertly when warm

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Old 05-05-2024, 05:00 AM
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1990 200e not working propertly when warm

Hi!
I have a '90 200e with ke-jetronic
Cold starts and idle are great, but when the engine gets to 80C, rpm starts to fluctuate a bit. When i start driving then there is no power, engine is like coughing, but if i press throttle to the max, it will fly like it has nothing wrong.
I have replaced spark plugs, distributor rotor and cap, fuel pump, fuel lines.
Currently have no ideas whats wrong with it.
Old 05-05-2024, 11:13 AM
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190E 2.6L 1989, BMW 535dXdrive 2014, BMW 428i 2015
You need to start with measuring fuel pressures and duty cycle and read some error codes if there are any.
One or more of the closed loop lambda components must be faulty.
Old 05-14-2024, 09:30 AM
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Mercedes-Benz E200 1990 model
Troubleshooting

My vehicle started to stall then stop.Then l restart an go.Now it's starting but when you rave it it's not raving as normal on high revs.when you try to take off no pulling well.what might be the possible cause?
Old 05-14-2024, 04:51 PM
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190E 2.6L 1989, BMW 535dXdrive 2014, BMW 428i 2015
Is this a coincidence or the same poster? They are identical E200 1990 cars not normally found in SA.
If it is a different poster same advice applies that I put up on the second reply above.

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