Diagnostics Mean More Than Just Scan Tools

At the component level, scan tools have help pinpointing problems.

Portable,"in-flight" gas analyzers can prove extremely valuable when diagnosing cars that have failed a transient emissions test (IM240, ASM). These analyzers give the average repair shop a practical means of diagnosing emissions failures without the expense of a full-blown testing lane. Also, instead of telling you what's supposed to be happening, an exhaust gas analyzer tells you what actually happened.

The tools outlined here provide a variety of features for the money, with their versatility making them worth their weight in gold. And, since technology keeps marching on, they're an excellent way to keep up with the times.

Comments on this article? Contact the author, Dave Cappert, at dcappert@verizon.net.

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