My innovate lc1 wideband was screwing up and it was recommended that i change out the sensor. I did. Im going through the calibration process and everything goes as directed up untill the last part of the procedure when i hold the button for 30 seconds and then its supposed to be done . Supposed to get a solid led light and car ready to go. I get 8 blinking led light code and the car hasnt changed at all. Ive checked the grounds and the wiring and done the calibration several times. It still starts runs for a minute or so and then flashes 7.4 on the gauge and starts surging with the iac sucking loudly. Should i replace the whole unit or does this sound familiar to anyone?