I'm throwing a P1153, front O2 semi-wideband is dead... so now, I'm considering getting a UTEC, and was wondering if this sensor is essential to the UTEC's operation? and if I decide to start tuning a bit on my own, will I need this sensor or since it's only a semi-wideband, can I just get an aftermarket wideband for less? does the UTEC have an input for a wideband??...

thanks.

oh yeah, how am I supposed to pass CA smog w/ a UTEC?...