S & G Tool Aid 23900 In-Line Ignition Spark Checker
S & G TOOL AID CORP. has for over 40 years supplied the automotive aftermarket and related industries with a wide range of general automotive and auto body tools, equipment and mechanicsā aids.Ā Our products are innovative and manufactured to professional quality standards.
Features:
- Use to quickly troubleshoot ignition system.
- Device is "hands free" and connects in-line between spark plug and spark plug wire.
- Shows a duplicate view of the ignition spark and checks the condition of ignition system at each cylinder.
- Frequency and intensity of flash indicates whether there is an ignition system problem or a fault in the fuel delivery system.Ā
WARNING:Ā Cancer & Reproductive harmĀ www.P65Warnings.ca.gov
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Shipping & Returns

S & G Tool Aid 23900 In-Line Ignition Spark Checker
S & G Tool Aid 23900 In-Line Ignition Spark Checker
S & G TOOL AID CORP. has for over 40 years supplied the automotive aftermarket and related industries with a wide range of general automotive and auto body tools, equipment and mechanicsā aids.Ā Our products are innovative and manufactured to professional quality standards.
Features:
- Use to quickly troubleshoot ignition system.
- Device is "hands free" and connects in-line between spark plug and spark plug wire.
- Shows a duplicate view of the ignition spark and checks the condition of ignition system at each cylinder.
- Frequency and intensity of flash indicates whether there is an ignition system problem or a fault in the fuel delivery system.Ā
WARNING:Ā Cancer & Reproductive harmĀ www.P65Warnings.ca.gov
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
S & G TOOL AID CORP. has for over 40 years supplied the automotive aftermarket and related industries with a wide range of general automotive and auto body tools, equipment and mechanicsā aids.Ā Our products are innovative and manufactured to professional quality standards.
Features:
- Use to quickly troubleshoot ignition system.
- Device is "hands free" and connects in-line between spark plug and spark plug wire.
- Shows a duplicate view of the ignition spark and checks the condition of ignition system at each cylinder.
- Frequency and intensity of flash indicates whether there is an ignition system problem or a fault in the fuel delivery system.Ā














