When I turn the ignition on, my power light comes on solid, then after a second or two starts blinking fast, giving me 16 blinks, and then turns off. From digging through old threads, I gathered that it's indicating some sort of problem with an auto gearbox. Except my car has had a manual conversion done. Am I understanding correctly that it's probably complaining about the auto box missing, and all I need to do to get rid of it is to pull out the transmission control module? Or is that light used for anything else not related to auto transmission?
You're correct, it'll be an indication of an auto trans error code, however these usually consist of ten consecutive flashes. Have you tried putting it in to diagnostic mode and confirming the exact error?
I haven't yet. But my car is manual, so if this light is purely related to auto transmission then the diagnosis would be "transmission is missing". I'm also not running stock ECU anymore, I've got a plugin LinkECU G4X. Not sure how it goes about diagnostic codes