Well it is an OBD II scanner. I took it back because none of the adapters fit. On my way back to return the scanner to Checker, I stopped at AutoZone and the salesman came out to my car, plugged in the OBD (his own) and found one code stating "Misfire in cylinder 4". About 4 mos ago, I replaced the wires with Ford Racing wires, and the ignition coil was replaced with an ACCEL coil. The car was running better than it ever ran. Now this????
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I figured that meant wires, coil or fuel injector. I purchased the cheapest first: another set of wires. I can't believe it could be the coil again, but that is the next cheapest. Then I will bite the bullet and pop for 4 new injectors at $50.00 @