Review on Ram Pro Engine Ignition Tester Fool Proof by Genene Locson

This tester is fine. It does the job, but for some reason the spade that goes into the spark plug wire is too small for a typical spark plug boot. My plug wires have no problem getting the spark plug and this tester has no problem with the spark plug (in fact it was so tight I had a hard time pulling it off). But even after crimping my connectors a bit, this tool still doesn't make a solid connection. I had to let it loose to connect and I was able to get the tester to work. So in the end I was able to test on Spark, but I'm certainly disappointed that it didn't work flawlessly for such a simple tool.