1990 Ford F250 "smog test fail hc ppm" Questions

...comment window. Check your muffler first make sure there is no holes before replacing the catalytic converter. It only cost me 160.00 to weld a new one in. It passed my smog test because I had high ...

...SMOG ON MY 1994 HONDA ACCORD FOR SECOND TIME AND FAIL THE ASM EMISSION TEST WHAT CAN DO PLEASE HELP EMISSION TEST FAILED 15MPH RPM 1862 / %CO2 MEAS 14.2 %O2 MEAS 0.0 / HC(PPM) MAX 61/ AVE 27 - MEAS ...

smog test fail my car fail smog test: HC (PPM)155 NO (PPM)753 I would just like to know if I can get advice & how to fix it, by buying parts myself I cannot afford to take it to a mechanic, I places I

...smog test looks like the engine is miss firing, that could cause the timing to be out of whack also, try a old fashioned tune up, new spark plugs, wires, and filters also replace the PCV valve. any ...

My 1993 Saturn SL2 just failed the Smog Check My 1993 Saturn SL2 just failed the fuel EVAP test, as well as had abnormally high HC(PPM) results. What can I do to fix this myself? change your O2 sensor

...Smog Check. Will a complete tune up fix the problem? If not, what should I repair / replace? ASM Emission Test Results: 15mph - RPM = 1902 %CO2 = 14.3 %O2 = 0.6 HC (PPM) = 160 (max 66) CO (%) = 0.74 ...

...smog test I have the truck test it 2 times, the first I pass emission but I fail oxigen sensors. On the second test I pass everything but I fail the emission test, the HC and NO readings are to high. ...

SMOG failed. right? what speed, there are 2 in uSA, 15 and 25.mph. so there are 3 tests, which one. all are PPM in usa. parts per million. but is that HC , CO, or NOX? or ? based on your numbers is HC

smog test is a COLD morning? ======= REMOVE excess cargo off the van. ======= These are little things that I would do. If the HC is still high at 25 mph then you will need a professional fuel injector

smog test? ASM Emission Test Results: 15mph - RPM = 1587 %CO2 = 14.8 %O2 = 0.1 HC (PPM) = 53 (max 66) CO (%) = 0.24 (max 0.57) *NO (PPM) = 755 (max 487) (Failed) 25mph - RPM = 1705 %CO2 = 12.7 %O2 = 3