1992 Dodge Van failed for HC in nj

Tiny
LOSTINMYHEAD1
  • MEMBER
  • 1992 DODGE VAN
  • V8
  • 2WD
  • AUTOMATIC
  • 167,539 MILES
My van failed for HC by 14 points nj requires a HC reading of 100. The vans was 114. I did a tune up, plugs wires, rotor cap, air cleaner and pcv. Should I try a new cat.
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Tuesday, April 28th, 2009 AT 5:24 PM

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Tiny
RASMATAZ
  • MEMBER
Elevated hydrocarbon (HC) emissions usually indicate ignition misfire due to fouled spark plugs or a bad plug. But high HC emissions can also be caused by burned exhaust valves (check compression), lean misfire (check for vacuum leaks, low fuel pressure or dirty injectors), or rich fuel conditions (fuel saturated carburetor floats, excessive fuel pressure, leaky injectors or a dead O2 sensor).
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Tuesday, April 28th, 2009 AT 5:27 PM

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