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Home >> Merkur >> 1985 >> XR4Ti Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EEC IV System >> Operation >> Inputs >> Self-Test Input (STI)
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Self-Test Input (STI)

Self-Test Input (STI) trigger is a wire (pigtail) near Self-Test connector used to activate Quick Test. Self-Test procedures are built into EEC-IV control module so system can display continuous Self-Test codes for diagnosis of intermittent problems.

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