Under certain conditions, some GM high-performance cars with manual transmissions force a 1st to 4th shift. Everybody but Nancy Pelosi and the EPA hate it. Here's step-by-step instruction on how to defeat it for $7
It's called "Computer Aided Gear Selection" or CAGS — and it's a system which works by using a solenoid in the transmission to force the driver to shift from first to fourth when you're driving in a leisurely fashion in 1989-and-on GM vehicles using certain 6-speed transmissions. It's purpose is to improve gas mileage and avoid the "gas-guzzler" new car tax.
CAGS comes into play under the following conditions:
* you're in 1st gear (of course)
* you're at 35% throttle or less
* you're between 15 and 21 mph
* engine coolant temperature is greater than 171 F (77 C)
We've noticed this annoying but necessary evil which allows cars with monster power to avoid the dreaded gas-guzzler tax by squeaking out a few extra miles per gallon in late-model Corvettes, but also, most recently, in the Pontiac G8 GXP. Which is what got us thinking about how to get around this little bugger of a dilemma. Luckily, it's pretty easy to defeat.
So.....we wired up the bypass and now the customer doesn't have to worry about it :-D
Next up, it need a better stance, so we lowered it with Eibach's 1.1" Pro Kit.
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