Zach1647545520 Posted January 20, 2008 Report Share Posted January 20, 2008 Okay question... why did GM change the pcm in 99? I got a 98 and was just wondering some of the differences. i noticed a differences in traction control between mine and my friends 00 camaro. when my tc kicks on it's like it just loses power... my friend (sinisterSS) says his pedal gets hard and it won't let him push down anymore. just curious that's all. been trying to figure this one out... thanks in advance. Quote Link to comment Share on other sites More sharing options...
AJ Posted January 20, 2008 Report Share Posted January 20, 2008 99+ PCM's are better thats why the changed them lol. on LS1Tech.com there is a pin out to change your 98 style to a 99+ PCM. Quote Link to comment Share on other sites More sharing options...
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