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FJR Motorcycle Forums
Technical & Mechanical Problems
AGirl's 07 ==> altitude sickness
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<blockquote data-quote="Wingman" data-source="post: 244554" data-attributes="member: 4328"><p>I was just looking at the 2006 service manual (should be the same for 07, but not confirmed yet) and there appears to be a sensor that reads intake manifold pressure, but no sensor for altitude compensation per se. With the sensor reading intake vacume, the ecm should automatically adjust for altitude without actually having a seperate altitude sensor. The operative word being "should".</p><p></p><p>The intake pressure sensor can be checked in the diag mode. The test is simply to go into diag mode and look for a drop in the reading when the engine is cranked with the starter, but I wouldn't expect to find anything out of the ordinary. You can also compare the diag pressure reading to the local barometer to see if they are off, but again, wouldn't expect to see huge difference.</p><p></p><p>I think the best way to find the problem would be to log the data while trying to duplicate the problem, but I'm not sure if this is even possible.</p><p></p><p>Good luck,</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="Wingman, post: 244554, member: 4328"] I was just looking at the 2006 service manual (should be the same for 07, but not confirmed yet) and there appears to be a sensor that reads intake manifold pressure, but no sensor for altitude compensation per se. With the sensor reading intake vacume, the ecm should automatically adjust for altitude without actually having a seperate altitude sensor. The operative word being "should". The intake pressure sensor can be checked in the diag mode. The test is simply to go into diag mode and look for a drop in the reading when the engine is cranked with the starter, but I wouldn't expect to find anything out of the ordinary. You can also compare the diag pressure reading to the local barometer to see if they are off, but again, wouldn't expect to see huge difference. I think the best way to find the problem would be to log the data while trying to duplicate the problem, but I'm not sure if this is even possible. Good luck, David [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
AGirl's 07 ==> altitude sickness
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