PCM tuneablity
07-24-2005, 10:21 PM
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PCM tuneablity
Has any company gotten into the SS/SC PCM yet . I would about give anyting to go thru the tables for the throttle body . Driving this car around town has become somewhat annoying , the rpms hang up FOREVER when you push the clutch in between shifts . On the F-bodies you could make adjustment with the throttle blade and IAC motor to fix that . After looking at the TB in my cobalt , it looks like a drive-by-wire TB which I had no clue the 2.0 SC motor had . Only way to adjust here is gonna be the thru the pcm .
07-24-2005, 10:36 PM
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You're right about the Throttle on the SS S/C. It is in fact a Drive-by-Wire system, which, as you mentioned, is conrolled by the PCM. Manual calibration is not possible 
I'm sure it's only a matter of time though before a someone comes out with a plug-in tuner or chip. Its just a matter of recalibrating the PCM with the new software, but thats difficult considering how complex the system is.
Once a tuner/chip is released, it should address a bunch of issues that people have. Besides the usual ignition and fuel system tweaks, it may have the capability to modify when the boost bypass valve activates, as well as deal with the throttle issue you are describing.
I'm sure it's only a matter of time though before a someone comes out with a plug-in tuner or chip. Its just a matter of recalibrating the PCM with the new software, but thats difficult considering how complex the system is.
Once a tuner/chip is released, it should address a bunch of issues that people have. Besides the usual ignition and fuel system tweaks, it may have the capability to modify when the boost bypass valve activates, as well as deal with the throttle issue you are describing.
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