High hydrocarbon emissions result from unburned fuel. I had to change my oxygen sensors to pass when i failed, but i failed on more than HC alone.
Failed Smog, what to fix?
Here are my readings
@15mph
RPM - 1714
%CO2 - Meas. 15
%O2 - Meas. 0
HC PPM - Max 89, Meas. 117
CO % - Max 0.53, Meas 0.19
NO PPM - Max 708, Meas. 197
@25mph
RPM 2764
%CO2 - Meas 15
%O2 - Meas 0
HC PPM - Max 54, Meas. 48
CO% - Max 0.51, Meas. 0.11
NO PPM - Max 746, Meas. 5
Edit: Have a 2g LS 5spd
@15mph
RPM - 1714
%CO2 - Meas. 15
%O2 - Meas. 0
HC PPM - Max 89, Meas. 117
CO % - Max 0.53, Meas 0.19
NO PPM - Max 708, Meas. 197
@25mph
RPM 2764
%CO2 - Meas 15
%O2 - Meas 0
HC PPM - Max 54, Meas. 48
CO% - Max 0.51, Meas. 0.11
NO PPM - Max 746, Meas. 5
Edit: Have a 2g LS 5spd
1 - 3 of 3 Posts
i just recently had to replace my rh02 (was throwing a code) and i did the 1-wire conversion. should i just replace the front too? i was throwing a code for it a while ago then when i cleared the codes it never came back.
1 - 3 of 3 Posts
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