Car Fixed
GarageProLogin
2021
nissan altima8 views

Check Engine Light On

Expert diagnosis and repair solutions for 2021 nissan altima Check Engine Light On. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

1
easy$10-$30
Replace or tighten the gas cap to resolve check engine light issues related to a loose or damaged cap.
Source: https://www.autonationnissanchandler.com/service/check-engine-light.htm

Repair Steps:

  1. Inspect the gas cap for damage or looseness
  2. Replace with a new gas cap if damaged
  3. Tighten the gas cap securely
2
hard$1,000-$2,500
Replace the catalytic converter if it is failing, which is a common cause of the check engine light.
Source: https://www.nissanattheavenues.com/2021-nissan-altima-check-engine-light.htm

Repair Steps:

  1. Diagnose the catalytic converter using an OBD-II scanner
  2. Remove the old catalytic converter
  3. Install a new catalytic converter
  4. Clear the check engine light code
3
medium$150-$300
Inspect and replace the fuel rail pressure sensor if the code P0191 is present, which can cause the check engine light to illuminate.
Source: https://www.nissanclub.com/threads/engine-dash-light-came-on-and-wont-go-off.529306/

Repair Steps:

  1. Use an OBD-II scanner to confirm the presence of code P0191
  2. Locate the fuel rail pressure sensor
  3. Replace the faulty sensor
  4. Reset the check engine light
4
dealerFree (covered under recall)
Address recall Campaign 21V138000 by having the dealer tighten or replace the tie rod ball joint fasteners.
Source: https://www.nhtsa.gov/recalls?nhtsaId=21V138000

Repair Steps:

  1. Contact a Nissan dealer to schedule a recall service
  2. Have the dealer inspect and tighten or replace the tie rod ball joint fasteners
  3. Verify the completion of the recall service
5
dealerFree (covered under recall)
Inspect and reroute the rearview camera harness as part of recall Campaign 23V628000 to prevent camera display issues.
Source: https://www.nhtsa.gov/recalls?nhtsaId=23V628000

Repair Steps:

  1. Contact a Nissan dealer to schedule a recall service
  2. Have the dealer inspect the rearview camera and harness
  3. Replace or reroute the harness as needed
  4. Verify the completion of the recall service

Get a Personalized Diagnosis

Get AI-powered repair suggestions specific to your vehicle's symptoms and history.

Start Free Diagnosis →
Browse more common problems