Anyone know what these codes mean?

Derrick

 

p0327 is knock sensor circuit low voltage and the p0430 is catalyst system low efficiency bank 2.

 

Did you cut your cats off or any other mods. This could explain you codes. if you did you could fix it with O2 simulators and a MAFT. just a thought.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JPJBC:
<strong>p0327 is knock sensor circuit low voltage and the p0430 is catalyst system low efficiency bank 2.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I originally thought that I had a bad O2 sensor, but I was a bit surprised when 2 separate codes were given. Could 430 be an O2 sensor? I might try swapping out the passenger side O2 sensors with new ones from my '02 Z28. What do you think?

Derrick

 

Yes 430 is the right bank sensor 2. That is the one behind the cat. Before going to all that trouble, did you run a O2 system check? Might be worth the trouble.