My 1994 Chevy Astro van failed Cailifonia smog because the HPC measured 61 and the limit is 53. My question is how do I correct it. It was not driven for over a month before the test.

Asked by GuruW4CJ Mar 30, 2017 at 02:35 PM about the 1994 Chevrolet Chevy Van

Question type: Maintenance & Repair

See the question

2 Answers

I assume you mean HydroCarbons? I would fill up with premium and drive if for a while but first I would tune it up - new plugs, filters etc. If this does not work you may need a new catalytic converter. California (head slap) is becoming a nightmare. There is a voucher program that might help you out --- http://www.smogtips.com/consumer_assistance.cfm

Your Answer:

CarGurus Experts

  • #1
    John Saffrahn
    Reputation
    510
  • #2
    Gene Arnett
    Reputation
    430
  • #3
    Paul
    Reputation
    350
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Dodge RAM Van
2 listings
Used Ford E-Series
5 Great Deals out of 129 listings starting at $2,795
Used Ford Transit Cargo
28 Great Deals out of 1,009 listings starting at $10,999
Used GMC Vandura
2 listings
Used Chevrolet Corvette
22 Great Deals out of 1,004 listings starting at $19,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.