I have a 87 shelby t1 charger, it was sitting for awhile. I decided to get it running, well its running after a clutch tranny and axles. I can run my stock logic module and it idles fine, but when i install my stage 2 it idles at 2000 rpms. I have heard that water can leak in and ruin the logic modules, anyone ever dealt with this before. The car set outside with the stage 2 installed, was running fine before it was parked. I did full tune up and all the basics to get it running good.