Having problems with your Cars & Trucks ?

My 1989 dodge ram 250 van failed smog check due to hc (ppm). what should i look at?

\015 The van has always passed the smog check with flying colors but not this year. Here are the numbers from my smog test\012 At 15mph-rpm 1194- CO2 11.05- 02 4.91- HC (ppm) 172- CO 0.52- NO (ppm) 542. \012 At 25mph- RPM 1364- CO2 10.33- 02 5.82- HC (ppm) 178- CO0.47- NO (ppm) 442.\015 Posted / edited by AnonymousUser on : 25-10-2021

Answers :

Repair Help & Product Troubleshooting for Cars & Trucks

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Loading ...

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0097 seconds