1992 Saturn SL2 Failed Smog Test California

1992 SATURN SL2
138,000 MILES • 4 CYL • FWD • AUTOMATIC
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KIMMERZ
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My daughter's car failed the smog test for California. It said Idle HC's failed. What does that mean? And what can I do to fix the problem?
Aug 25, 2010 at 8:33 PM
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RASMATAZ
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Could be low engine compression, ignition misfire or lean fuel condition
Aug 25, 2010 at 9:25 PM