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Specifications:
Material: stainless steel, plastic
Color: black
Size: 70mm/ 2.76 inches (metal interface)
125mm/ 4.92 inches (shaft/lamp housing)
Weight: 80g/ 2.82oz
How to Use the Car Inline Spark Plug Tester:
-Step 1: Turn Off the Engine: Ensure the vehicle's engine is turned off and the key is removed from the ignition to prevent any accidental starting.
-Step 2: Locate the Spark Plug: Find the spark plug wire you wish to test. Disconnect the wire from the spark plug.
-Step 3: Connect the Tester: Attach the inline spark plug tester between the spark plug and the spark plug wire. One end should connect to the spark plug, and the other end to the plug wire.
-Step 4: Start the Engine: Turn on the engine. The inline tester will show a light or spark indicating whether the spark plug is receiving power.
-Step 5: Observe the Tester: Look for a consistent spark or light within the tester. A steady spark indicates that the spark plug and ignition system are functioning correctly.
-Step 6: Turn Off the Engine: Once testing is complete, turn off the engine before disconnecting the tester.
-Step 7: Disconnect the Tester: Remove the tester from the spark plug and reconnect the spark plug wire to the spark plug.
-Step 8: Repeat as Needed: If testing multiple spark plugs, repeat the process for each one.
Juda A Attkisson
Reviewed in the United States on January 29, 2025
It’s just cheaply made
GerryP
Reviewed in the United States on October 1, 2024
I tested it thinking I would see bright flashes. I didn't see anything. At first, I thought I wasn't making contact or that I had a plug wire problem. I looked closer and could make out a faint flashing. This was in my garage with an overhead light. I'd imagine outside in the sun, it's going to be more difficult to see. Probably okay in the shade. With that, I also have a tester with an adjustable gap so that one isn't very easy to see either. But I do have an oscilloscope and that for sure shows me current in the secondary. I think this is worth having as it is super simple to use and does give you a result even if it isn't very bright.
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