1994 Nissan March failed car test (nct)

1994 NISSAN MARCH
70,000 MILES • 1.0L • 4 CYL • FWD • MANUAL
Avatar
MELO-CAKES
  • MEMBER
  • 1 POST
hi ive failed my car test on my nissan march (micra on logbook) on emissions from high idle at CO 0.076% volume and the maximum is 0.30%, im suggesting its the cat converter but not too sure ?
Feb 9, 2015 at 7:18 AM
Advertisement
Avatar
KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
Are there any trouble codes and is the Malfunction Indicator showing?
Feb 12, 2015 at 10:10 PM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,224 POSTS
It sounds like to me you have a fuel pressure regulator that is leaking, I would remove the vacuum line from it and if there is fuel present the regulator is bad and needs to be replaced. Here is the location so you can check it out. Check out the images (below). Let us know how it goes
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Jul 6, 2024 at 11:22 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.