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Old 12-03-2012, 06:54 PM   #1
alestex
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2002 vs 2003 VRSCA

Are there any major differences between the 2002 versus 2003 models? I mean besides the badge/anniversary tins.

I searched but couldn't find any threads on this topic...
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Old 12-03-2012, 06:58 PM   #2
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They should be pretty close to each other. 04 introduced 28 tooth front pulley, blame frame option, and updated transmission parts


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Old 12-06-2012, 03:12 PM   #3
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Originally Posted by alestex View Post
Are there any major differences between the 2002 versus 2003 models? I mean besides the badge/anniversary tins....
The change made in 2003 (besides the color options and 100th anniversary badges you mentioned) was the location of the IAT (intake air temperature) sensor. This was moved from the front cylinder intake runner to the air cleaner cover near the snorkel tube. This required a change in the ECM calibration to compensate.
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Old 12-06-2012, 07:30 PM   #4
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Thanks guys.

Steve--do you know what that change was intended to fix/improve?
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Old 12-07-2012, 06:15 AM   #5
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Originally Posted by alestex View Post
Thanks guys.

Steve--do you know what that change was intended to fix/improve?
The ambient temperature of the intake runner is strongly affected by the cylinder head temperature. The 2003 IAT position protects it from any engine temperature heat flow so the measured air temperature provides a better signal for determining the mass flow of the intake air.
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