Using a 2003 WRX wagon donor with a ver7 EJ207 engine and Looks
Like they sent a ver 8 ECU. Only one fan ever turns on and based on wiring diagram it’s the sub fan. That could be me just plugging in them backwards, but none the less only one fan ever turns on. No over heating issues it stay right at the bottom of the lines of the acceptable range. When I connect the green test plugs both fans cycle on. I deleted the A/C wires, but tried my best to not cut back to another system. Is that the issue? As I see it the only wire that intersects is the Gor wire. Aren’t both fans supposed to turn on? Do I try to locate the A/C switch as when turned on should put both fans on low speed. Did I cut the low speed wired for both, not sure it’s quite frustrating. Based on this schematic what would I do to wire in a switch to control the fan that is not working to be a low/ high operation?