Hackintosh Slav has a large page of errors and troubleshooting steps for Hackintoshes in general:
Enable CSM in your UEFI settings. This may appear as "Boot Legacy Roms" or some other legacy setting.
Make sure that within your Config.plist under Kernal/Add, that VoodooInput is above/before any of the VoodooPS2 and VoodooI2C kexts. Voodooinput needs to be loaded before the VoodooPS2Trackpad kext specifically for it to attach and function.