P1390 Mitsubishi Code - Timing Belt Skipped 1 Tooth Or More
Quick Answer
P1390 Mitsubishi indicates Timing Belt Skipped 1 Tooth Or More. Common causes include Timing belt has jumped one or more teeth, Loose Camshaft or Crankshaft Position Sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1390 Mitsubishi indicates Timing Belt Skipped 1 Tooth Or More.
- Common causes
- Common causes include Timing belt has jumped one or more teeth, Loose Camshaft or Crankshaft Position Sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1390 Mitsubishi Description
What are the Possible Causes of the DTC P1390 Mitsubishi?
- Timing belt has jumped one or more teeth
- Loose Camshaft or Crankshaft Position Sensor
How to Fix the DTC P1390 Mitsubishi?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1390 Mitsubishi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1390 Mitsubishi code?
Need more information on how to fix the P1390 Mitsubishi code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1390 Mitsubishi code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1390 Mitsubishi Code
1. What does the OBDII code P1390 mean on a Mitsubishi?
P1390 indicates that the timing belt has skipped one tooth or more, which can cause improper engine timing.
2. What are the symptoms of the P1390 code on a Mitsubishi?
Symptoms may include rough idling, poor acceleration, reduced fuel efficiency, engine misfires, or difficulty starting the engine.
3. What causes the P1390 code in a Mitsubishi?
Common causes include a worn or damaged timing belt, a misaligned timing belt during installation, or a failed timing belt tensioner.
4. Can driving with the P1390 code damage my Mitsubishi’s engine?
Yes, ignoring this issue can lead to severe engine damage, particularly if the timing belt fails completely or the engine timing becomes significantly off.
5. How is the P1390 code diagnosed?
A mechanic will inspect the timing belt for wear or damage, check the alignment of the timing marks, and verify the condition of the timing belt tensioner and related components.
6. How do you fix the P1390 code on a Mitsubishi?
Repairs typically involve replacing the timing belt, adjusting the timing, and possibly replacing the timing belt tensioner or other related components.
7. How often should the timing belt be replaced to avoid the P1390 code?
Refer to your Mitsubishi owner’s manual, but timing belts are generally replaced every 60,000 to 100,000 miles.
8. Can a loose timing belt tensioner cause the P1390 code?
Yes, a loose or faulty timing belt tensioner can lead to the belt skipping teeth and trigger the P1390 code.
9. How much does it cost to fix the P1390 code on a Mitsubishi?
Repair costs vary but typically range from $500 to $1,000, depending on whether additional components like the tensioner or water pump need replacing.
10. Can I reset the P1390 code without fixing the issue?
While you can clear the code, the underlying problem will persist and could lead to engine damage if not addressed.
Discuss the causes and fixes for P1390 Mitsubishi OBDII Code
Code P1390 Mitsubishi comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
