2005 odd shifting issue for fuel efficiency?

My dad just bought a 2005 Corvette w/manual transmission.. He was telling me about some type of "fuel efficiency" setting that sometimes forces him to
switch between certain gears... For example, sometimes he cannot switch from 1st to 2nd... it forces him into 4th for fuel efficiency??
Has anyone hear of such a thing?? Also, where can I find out more... and most importantly, how do we DISABLE it!?
Thanks, Troy
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The C6 stick has a "skip shift" gizmo that forces a 1->4 upshift under certain combinations of RPM and throttle position. The range in which it is in effect is fairly narrow. It's there to help Chevrolet meet Federally-mandated fuel economy goals. It's a minor nuisance at worst, easy to work around just by holding 1st to about 2200 RPM. And if you're driving with any verve at all it'll sense the throttle application and not enable the Skip Shift widget.
It works when the engine computer applies a voltage to a solenoid installed on the transmission case. Just unplugging the solenoid will defeat the gizmo but will cause a 'check engine' fault from the car's on-board diagnostics. But you can trick it by unplugging the solenoid and wiring a resistor across its former feed (I'm not sure of the proper resistance). There are also numerous accessory kits on the market that do the same thing.
-- Vandervecken
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On Wed, 08 Jun 2005 21:35:00 -0500, Vandervecken

The kit is called a 'Skip Shift Eliminator' which would be easy enough to find on a search engine. I think www.ls1.com has some information, too... -- lab~rat >:-) Do you want polite or do you want sincere?
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Time for your dad to install a CAGS eliminator.
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