Need Help!!

[whitelightning07]

I have a 02 silverado 5.3 4l60e with a cold air intake, throttle body spacer, comp cams 228/228 .588/.588 112 lsa and i just bought a jet dynamic spectrum tuner and cannot by any means get my truck to shift or stay running. i do not have any kind of dyno shop anywhere close to me and need help! any advice or links to website to help would be much appreciated.

[kahjdh]

I would call nelson performance and they could send you a reprogrammed pcm with all of the specs you need.

[Elbert]

is the cam you have (assume you installed it) rated to work with your truck / fuel injection setup? You can spend a whole lot of money on this stuff without much gain in real power. You might consider putting a new stock cam in engine. Just swapping the camshaft will not show significant gains in an otherwise stock engine. Getting something like that to run right is an expensive challenge.

[maxwedge]

Thats a pretty big cam to get to perform in a truck with stock gearing and convertor, I am sure low and mid range torque has been affected, as well as idle vacuum, are you sure you have .588 lift? How about exhaust, stock? Any check engine lite on?