Lowering Emissions
I live in California, and we have smog checks.
Right before I have my '89 XJ (w/ 180+K Mi.) tested, I replace the air filter element and give the engine a tune-up...but most importantly, I have the oil changed IMMEDIATELY before the test...yes, at the Oil Changers a block away from the smog test place.
HTH!
Right before I have my '89 XJ (w/ 180+K Mi.) tested, I replace the air filter element and give the engine a tune-up...but most importantly, I have the oil changed IMMEDIATELY before the test...yes, at the Oil Changers a block away from the smog test place.
HTH!
Seasoned Member
Joined: Aug 2007
Posts: 399
Likes: 4
From: Illinois
Year: 2000
Model: Cherokee
Engine: 4.0
That doesn't help me too much, did they give you a readout on the gasses and what the reading were in ppm (parts per million) or whichever measurement they use? ex. If your HC (hydrocarbons) are too high, that will indicate a misfire and/or an extremely rich running condition.
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