Join Date: Mar 2002
Location: Austin, TX, USA
Re: 96 Z28 will not start
Nope, O2 will not prevent it from starting. In fact, OBDII is smart enough that the vehicle will usually start and run without you even knowing there is a problem with it.
Things that come to mind which would prevent a start are ignition module, fuel pump, crank position sensor, etc. I would expect a Haynes manual would have simple diagnostic procedures to check those things using a digital volt-ohm meter. The TPS can be diagnosed with a volt-ohm meter as well. Perhaps you have a broken wire or loose connection somewhere instead of a bad TPS.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI