Are you getting 5v at the plug? Perhaps this thread will help: Low ERR CTS - Page 2Need some help here. I have a coyote with a terminator x max ecu. Cts is reading low error. I feel as if if tried everything under the sun and I can’t seem to trouble shoot this. I’ve checked for continuity, ensured I had good grounds, attempted to jump the plug using a paperclip and changed out the sensor. After giving Holley this information they insisted I attempt to go through the setup wizard again and also update my firmware, to which all methods were inconclusive. Any help or opinions is much appreciated.