My Dodge Caravan 3.3l (270,000 klics) has passed aircare but with nox reading that are 50% above average. I'd like to adjust one thing at a time an retest. What is the most likely cause.
- dirty air filter (never replaced)
- spark plugs (never replaced)
- EGR valve (is this ever the problem)
- O2 sensor etc.
Thanks
Year
That should be;
Year NOx Average
2007 895 732 2008 953 671 2009 976 656xxx wrote in news: snipped-for-privacy@h14g2000pri.googlegroups.com:
You've *never* replaced your spark plugs *or* your air filter? If you're the original owner or didn't buy it less than 100,00 Km ago I'd change those first. Look at the owners manual on a *regular* basis. These things (among others you've probably missed too) *need* to be replaced.
Wait a minute... you are at 162,000 miles with the original air filter and original plugs?
Do you do ANY maintenance at all on this car?
--scott
That downright turns my stomach... You reckon he ever changed oil or serviced the tranny?
Folks who live in Lotus Land are in a different world.
Chances are the spark plugs with new wires and a new air filter will correct this issue.
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