You'd think a service light would be the first indicator of a mass air flow (MAF) sensor problem, but there are times a problem develops with the MAF and no service light comes on. Scott "Gonzo" Weaver explains how poor idle, loss of performance, sluggish performance and even stalling are...
Automotive trainer John Forro advocates knowing your tooling needs and developing a strong relationship with those tools. Knowing a tool's capabilities and limitations will help you advance your diagnostic process.
If you're buying a new scope or upgrading one you already own, here are some accessories that can make you more productive.
Hunter, Bartec and Coats products make Craig's favorite tool list.
Snap-on and Victor tools top Robert's top tool list.
If you're in the market for a new scope, Underhood Service Editor Andrew Markel has provided his recommendations on how you can get the most bang for your diagnostic dollar.
Pulling a P0135 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) code means you're dealing with a possible oxygen sensor heater element and/or associated components in this circuit. This article provides a game plan for diagnosing a vehicle with this code.
Contributing writer Carlton Banks continues with his series on Advanced Misfire and Fuel Trim Analysis, using fuel trims and oxygen sensor behavior to determine if the misfire activity is ignition, engine mechanical or fuel related. This article focuses on fuel-related misfires.
TechShop's annual tool and equipment resource can be found online and in our January issue.