1993 Toyota Corolla HC ppm failed pass NJ emission test

100,422 MILES • 4 CYL • FWD • AUTOMATIC
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DULONG3A
  • MEMBER
  • 1 POST
HC PPM failed at 325 reading in NJ inspection. CO% Pass and NO PPM pass.
Got this car from cousin(They didn't use it for 3 year). It runs great but low gas milage (gas light on at 158 mile driving). I changed engine oil but not filter (too tight to take it out). I also changed air filter and spark plugs w/ wires. What else can I do (DIY) before send to reinspection? Thanks very much!
Jul 13, 2010 at 7:18 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be a coil problem and others such as vacuum leak, dirty injectors and fuel delivery problem and an engine that burns oil.
Jul 13, 2010 at 7:24 AM
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