Car starts but the RPMs fluctuate and backfiring?

2001 NISSAN SUNNY
200 MILES • 1.3L • 4 CYL • 2WD • MANUAL
Avatar
PARINSHAMEEL
  • MEMBER
  • 3 POSTS
Car starts but does not idle and sputtering.
Nov 12, 2024 at 7:39 AM
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.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
It sounds like the engine needs a tune up, I would also run the codes as well. Here are the instructions on how to swap the plugs out which I would replace the ignition coils as well. Here is a guide that will help:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

NGK Double Platinum Tipped

Standard Type .................... PLFR5A-11
Cold Type .................... PLFR6A-11
Hot Type .................... PLFR4A-11

https://www.2carpros.com/articles/how-to-change-spark-plugs

Check out the images (below). Please let us know what happens.
Image (Click to enlarge)
Attached Media
Nov 12, 2024 at 5:08 PM
Advertisement