I have a stock 91 GT that failed the AZ emissions test today, the results are as follows: HC = 2.53 / 1.00 standard , CO = 14.76 / 12.00 standard, and it passed the NOX test. Any tips on getting it to pass? My first reaction is to replace the cats, but as far as anything else I have no idea. Thanks for any help in advance.
Failed AZ emissions
Jan 05, 2006
3 Replies
"915.0Hatch" wrote in news: snipped-for-privacy@g49g2000cwa.googlegroups.com:
Assuming that it's in good condition, start with the basics first. Give it a good tune-up and try again.
Joe Calypso Green '93 5.0 LX AOD hatch with a few goodies Black '03 Dakota 5.9 R/T CC
Take it for a run, you need a good warm engine before the test. Rick
High hydrocarbons... hmmm sounds like a short run grocery getter use lately, not in real good tune. How much oil does it burn?
Tune up, Run engine warm blast it out with a good romp & run... change oil, PCV valve and MAKE SURE screen under it is clean.
then romp it out for about 10 miles before going in to test.
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