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Diagnosis please

I have a 1991 Mercedes 300 CE that has lousy acceleration from a dead stop until about 10 MPH when it starts accelerating OK.

Sometimes from a dead stop, the car "stutters"and fails to accelerate until about 10 MPH.

The computer shows that everything is normal but the problem remains. This anomaly occurs more often when the car is hot.

Anu ideas? Te car performs great above 10 MPH.

The throttle position sensor contacts or the MAF sensor may be dirty.