Lumina V6-191 3.1L VIN T MFI (1993)
Vehicle Speed Sensor: Initial Inspection and Diagnostic Overview
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Check for a broken (or partially broken) wire inside of the insulation which could cause system failure but prove "GOOD" in a continuity/voltage
check.
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Check for proper installation of aftermarket electronic equipment which may affect the integrity of other system.
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If any ECM codes are set, see Computer and Controls.
