OBD Guide

P1348

Misfire During Start Cylinder 4

P1348 is an OBD-II diagnostic trouble code meaning: Misfire During Start Cylinder 4. Common causes: spark plug fault in cylinder 4, problems with the ignition coil. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–56 (est.)

Symptoms

  • The engine is difficult to start
  • Jerking on startup
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Is On

Causes

  • Spark plug fault in cylinder 4
  • Problems with the ignition coil
  • Clogged fuel injectors
  • Low compression in cylinder 4
  • Problems with wiring to cylinder 4

How to Fix

  1. Check the condition of the spark plug in cylinder 4
  2. Test the ignition coil
  3. Check the fuel injector of cylinder 4
  4. Measure the compression in the cylinder
  5. Check the integrity of the wiring to cylinder 4

Related codes

Error P1348 by Vehicle Brand

FAQ

What does the P1348 code mean?

P1348 is an OBD-II diagnostic trouble code that indicates: Misfire During Start Cylinder 4

What causes a P1348 error code?

The most common causes of P1348 include: Spark plug fault in cylinder 4; Problems with the ignition coil; Clogged fuel injectors; Low compression in cylinder 4.

How do I fix a P1348 diagnostic trouble code?

To fix P1348: Check the condition of the spark plug in cylinder 4. Test the ignition coil. Check the fuel injector of cylinder 4. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1348?

Do not drive — repair immediately

How much does it cost to fix P1348?

The estimated repair cost for P1348 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat