Gary Goms - Technical Contributor
Giving it the Gas: Rethinking Fuel Pump Diagnostics and Sensors

In many cases, “always done it this way” consists of diagnosing a fuel pump by squirting some type of liquid or gaseous hydrocarbon into the air intake. Case in point, a 2011 Nissan Rogue had suddenly stalled on a busy summertime highway.

Technical: Diagnosing Cranking, No-Start Failures

When we can’t access the secondary circuit, which consists of the spark plugs, wires and ignition coils, we can diagnose the secondary ignition system through the “back door” by testing the primary circuit.