1999 Hyundai Accent "hc co emissions" Questions

...HC 228 PASSED CRUISING BUT NOT IDLE. CO% 1.73 CO+C02% 14.83 02% 1.4 RPMS 890 ALL AT IDLE. clean the throttle and run a couple bottles of rubbing alcohol through fuel tank drive about 50 miles take it ...

...HC 333 CO 3.75 Low speed HC 406 CO 0.07. I ran about 5-6 tanks of gas through it using lucas fuel system cleaner every other tank and changed the fuel filter twice. I replaced the distributor, rotar, ...

...co 5.508 % hc,s 250 on idle Replace your oxygen sensors.               murf427 Help please guys Low idle 760rpm CO 0.78% above 30 ...

...HC 103 CO 0.37 NOx 1891 basic tune up plugs wires air filter distributer cap, router then took Test Two HC 91 CO 0.40 NOx 1876 tried the gas additives heet fuel injector cleaning etc.. then took Test ...

...HC: Max=104, meas=35; CO: Max=1.12 meas=0.02; NO: Max=791, meas=1005 Test after installing new Cat Converter: (NOX tested higher) Speed mph: meas 14.9 Target: 15.0; Load hp: meas=14.3, ...

...HC(PPM) MAX 61/ AVE 27 - MEAS 105 / CO(%)MAX 0.51/AVE 0.10 /MEAS0.91 / NO(PPM) MAX 490 / AVE. 165 / MEAS 292 RESULTS FAILED 25MPH /RPM 1911 / %CO2 MEAS 14.2 / %O2 MEAS 0.0 / HC(PPM) MAX 36 / AVE 16 ...

...HC (PPM) max 59 meas 176 - CO (%) max 0.49 meas 1.33 - NO (PPM) max 484 meas 134 Test 25 mph - RPM 1231 - %CO2 12.7 - %O2 0.1 - HC (PPM) max 34 meas 137 - CO (%) max 0.46 meas 3.76 - NO (PPM) max 711 ...

...CO and HC levels. It failed emissions test with hi CO and HC levels. What are the most common emission issues with these vehicles. Not sure, but did you replace the oxygen sensors. Is your catalytic ...

15 MPH HC and CO; 25 MPH HC @15 MPH Both HC and CO failed (HC 50% more) @25 MPH HC failed 84 get your injectors cleaned. change the air filter .change your plugs. put a fuel cleaner in your fuel tank

...HC and CO didn't really change at all. CO has been as this level for over 80k, I've seen other BMW's with this happen too and they keep passing year after year but CO used to be much lower. Check vvt ...