Questions & Answers for: failed smog

failed smog i rebuilt it and failed smog. can anyone help analyse a california smog report? looks like you need to replace the co2 sensor

Failed smog Any suggestions on what i could check or what the problem may be if my 92 protege failed smog by having hc's and nox to high. my hc was 190 with 127 max and my nox was 2021 with 825 max. ...

...failed) @ smog check 1985 Volvo DL fuel evaporative control functional (failed) at smog check replace the pvc valve and have the egr valve replace.make sure the vacuum hoses connect to egr valve and ...

failed smog because of leak in fuel line failed smog because of the gas would hold pressure. So were would it most likely be leaking because i putted a new fuel pump in and after that it would pass ...

FAILED SMOG TEST MY 97 CAVALIER, Z24 FAILED SMOG TEST, A FEW WEEKS LATER, WATER PUMP STARTED LEAKING. COULD A SMALL WATER PUMP LEAK HAVE BEEN THE REASON FOR THE CAR NOT PASSING THE SMOG TEST??? PLEASE

failed smog my car failed smog inspection it failed the part were it said emmissions they said the numbers were to high means that the hc,co2,nox, emissions are too high, you will need the numbers in ...

...smog done. It failed at 2400 rpms showing a timing calibration fault. Will changing the Camshaft and Crank sensors help car pass smog? If so, by how much? code p 1340 refers to crank position sensor ...

...failed smog 2X is now a gross polluter ? clutch, smog parts the upstream o2 sensor, fuel pressure regulator, a fuel filter, air filter all new Also a compression test failed smog 2x now a GP my VIR ...

why can't I pass smog check engine light won't come on The smog check requires a visual inspection of your check engine light. It has to come on for a bulb check at startup to make sure it's working. ...

1998 GMC Sonoma sls 4.3 stepside shortbed Had codes in obd11 ,but unplugged truck battery to fix problem..put battery back on ,it runs fine now..I haven't erased any codes yet tho, need to smog it now