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Engine Scan Tools - Recommendations and Reviews
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<blockquote data-quote="Tathradj" data-source="post: 457006" data-attributes="member: 2436"><p>They used a weird communications protocol.</p><p>About the only way to do them was use</p><p>the blink codes.</p><p>They blink out a series of faults.</p><p>Start with the first one,</p><p>Then look at the last one.</p><p>The ECU would chain a set of codes in series.</p><p>It knew the air was coming in and where it was</p><p>supposed to be within a set parameter, They would stop</p><p>at that point.</p><p>Ambient air temp sensors that were faulty on a Commodore</p><p>would show up as faulty 02 sensors as an example.</p></blockquote><p></p>
[QUOTE="Tathradj, post: 457006, member: 2436"] They used a weird communications protocol. About the only way to do them was use the blink codes. They blink out a series of faults. Start with the first one, Then look at the last one. The ECU would chain a set of codes in series. It knew the air was coming in and where it was supposed to be within a set parameter, They would stop at that point. Ambient air temp sensors that were faulty on a Commodore would show up as faulty 02 sensors as an example. [/QUOTE]
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Engine Scan Tools - Recommendations and Reviews
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