Testing and adjusting specifications

As from Model 89 engine type M 64/01

Test

Specification

Remarks

Electric fuel pump delivery rate

at least 850 cm3 / 30s

Fuel pressure (Engine stationary) Fuel pump relay bridged

3.8 ± 0.2 bar

Control value, engine idling

approx. 3.3 ±

0.2 bar

Minimum pressure after 20 min.

3.0 bar

Without catalytic conv.

With catalytic converter

Idle speed rpm

880 ± 40**

880 ± 40**

CO values %

0.5 -1.0

0.4-1.2*

* Measured upstream of catalytic converter and Lambda probe connector not separated. No CO adjustment

HC values ppm

<300

<300*

** The Idle speed can be checked only. There is no idle speed adjustment.

Testing and adjusting specifications

Printed in Germany - 1988

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