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2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-12-2006, 02:34 PM   #31
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So...the difference is that the SSEi'* don't have it...and the SE/SLE'* do. And this is the california emissions thingy? It could be
1) performance related...perhaps the non-aerated were found to perform better with these, thus they gave them all one in these years

or

2) demand related....perhaps there was a larger demand for SSEi'* - in which case they could special order cars with or without these. Perhaps the demand for the SE/SLE'* were minimal to the point where it was easier to manufacture them all with.
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Old 04-12-2006, 05:00 PM   #32
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Quote:
Originally Posted by harofreak00
2000 SSEi... nope dont have it
Ditto.
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Old 04-12-2006, 06:13 PM   #33
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Quote:
Originally Posted by swartlkk
2001 SSEi - No pump. Big fat emptyness in that area...

Definitely weird. What would be the side effects of removing it?
im not sure, there is a sensor and a vacuum diaphrom/modulator that go along with it that are mounted on the rear of the egnige, just peaking above the engine cover, so i think i would set a code if it was removed, however, it will also leave a big hole in my crossover pipe for the exhaust.

If noone knows what the purpose of an air injection pump: The pump pushes fresh air into the exhaust to help the catilyst in the catalytic converter work more effectively at removing harmful pollutants.
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Old 04-12-2006, 06:55 PM   #34
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Yes, but it only does that on start up. You could probably have the codes deleted from the pcm and then remove the air pump from the vehicle.
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