I just swapped out my OE Water Pump and Tstat this weekend for the RE-Emedy parts. My ECU light it on. The car ran fine on a test drive. It ran rich, 13 AFR (I have a W02 gauge).

Gauges work and it idles fine. Cobb cant work because it can't comm with the ECU.

Any thoughts of why my ECU light is on or any troubleshooting steps?

You have to do the 20 brake pumps to reset the ESS

Gotcha i'll try it now. i was starting to worry.

let me know if it works

good stuff, ecu light is gone. Thanks a million for the help.

No Problem.