• Use to test spark plug circuits, electronic fuel injection signals and idle air control circuits.
• Quickly diagnose "no start_ and engine misses conditions in the electrical fuel injection and spark plug circuits.
• Analyze rough running engines.
• Supplied with instructions in a durable, plastic molded storage case.
• Includes: Cat. No. 23970, In-Line Spark Checker Kit for Recessed Plugs. This is a must for testing newer vehicles with recessed spark plugs. Can also be used to test conventional and coil-on plug ignition systems, Noid Lights for checking GM PFI, FORD TBI, GEO TBI, BOSCH PFI, GM TBI, GM SCPI, BOSCH 2 and GM MULTEC 2, 2 IAC Test Lights for straight and 90_applications
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