bobafc3s

My na s4 FC smog test results

15mph
1851rpm 14.3co2% 0.5O2% 119HC max 121HC .41CO% max .76 78NO max 807

25mph
2968rpm 14.6CO2% 14.6O2% 96HC max 96HC .19CO% max .65 61NO max 746




Am i running rich? HC is unburned oil yes or no?? Any input would be great thanks!!

Sideways7

iTrader: (7)

From the FAQ:

I'm getting a headache trying to figure out the results you posted, so hopefully the chart will help you out.

jouslee

hmm.. the only problem i had when i did smog was my high HC levels, The max was 141 at 15MPH and 161 at 25MPH my numbers were 141 at 15MPH and 161 at 25MPH. Right on the dot barely passed.

So I would fit in to the Run-in converter, tune-up, oil-change catagory.

BTW, what is a "Run-in converter"? (sorry for threatjacking)

Icemark

sounds like the ACV or air pump is not working

Run-in converter, means the converter is failing to fully convert... and that is caused by lack of extra air or actual break down of the elements.