voltage at the alternator is a solid 14.6 on start and as it heats up drops to around 14V. battery stays topped off and the new fan acts like the old fan so that isn't the problem.
1000
its a 97. that makes sense so I might try it tomorrow. its never been reset and run with the low speed circuit working correctly. i got that working after the tune.
what rpm does it idle at?
1000
What year is the car? I know base idle reset procedure for mine asks to unplug battery 30 mins to clear the ecu memory. Unplug IAC and start car set the mechanical idle speed and shut off the car. Plug the IAC in with all electronics and AC off and start the car and let it idle for 2 mins and then shut it off again. Then start the car with all the electronics on and the AC which will kick on your high speed fan and let it idle for 2 mins. This allows the car to learn the idle characteristics with no load and full load.
its a 97. that makes sense so I might try it tomorrow. its never been reset and run with the low speed circuit working correctly. i got that working after the tune.