500SEL (126.037) V8-5.0L (117.963) (1984)
Feedback Control Module: Testing and Inspection
Lambda System Function Test
Special Tools
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Lambda closed loop tester with yellow test wire - 909 589 00 21 00
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Oil telethermometer - 116 589 272 100
Test Conditions:
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Ignition system must be in good working order and engine at idle speed.
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Ignition timing must be set to specification.
Testing