i did 1st to third pull, car ran great good AFR. but the next day I started the car and usually at a cold start I have a rich AFR but this time it started with a lean AFR like 15.5-17.0 on my gauge. I drove the vehicle under no boost my short term fuel trim was 0.84 min and 1.24 max. Long term is 1.00. Could my gauge/wideband get faulty after a pull? My wideband goes through my shifter and then to the sensor.