190E 2.3 (201.024) L4-2.3L (102.961) (1984)
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Cold Start Injector: Testing and Inspection
Testing Start Valve Actuation
Testing start valve actuation
Preceding work:
Testing starting device. See: Testing Start Device
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Connect testers:
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multimeter (003)
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ohms decade (038)124 589 09 63 00.
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Test starting voltage. At least 10 V in approx. 5 seconds.
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Test electric wiring between starting valve and fuel pump relay for continuity. Resistance approx. 0 ohm.
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a) Vehicles with actuation via thermo-time switch (S26)
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Test thermo-time switch (S26) (102.961 USA).
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b) Vehicles with actuation via fuel pump relay module
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Test voltage at fuel pump relay module. Contact 12 (terminal 50) at least 10 V, contact 2 (terminal TF).
Special Tools
Commercially Available Tester
