I've been doing research on retrofitting a custom individual-glow-plug-controller onto older engines, and found out that the 6.0 controller looks perfect - it controls 8 glow plugs all individually, looks like it has a temp sensor input as well... Sounds like it could be retrofitted just fine, and they aren't that expensive! The only problem is the PCM controlling it. I need to figure out exactly how/what it sends, so I can duplicate that with, say, an arduino. Anyone have any documentation or places to look?