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1999 Dodge Dakota Emissions/smog equipment

Tiny
RANDEEZY
  • MEMBER
  • 1999 DODGE DAKOTA
  • V8
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
How can I reduce hydrocarbon at tailpipe. I m over the limit by only 10 points or so. I already did oil and filter and plugs
wires cap&roter. I do have 50 state legal air raid coldair and MSD 6A ignition box Als should I buy a after market coil to power my MSDBox willthat help the msd perform better?
Thankyou! What do I replace to reduce hydrocarbon?
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Friday, January 1st, 2010 AT 6:54 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Unburned gasoline wiil caused the HC to increase that can be caused by ignition misfire, lean misfire and low compression (typically a burned exhaust valve). Ignition misfire can be caused by worn or fouled spark plugs, bad plug wires or a weak coil. Lean misfire results where there is too much air and not enough fuel, so check for vacuum leaks, dirty injectors or a fuel delivery problem. In addition to these, hydrocarbon failures can also be caused by oil burning due to worn valve guides, valve guide seals and/or rings.
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Friday, January 1st, 2010 AT 7:02 PM

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