OBD Guide

P1342

Misfire During Start Cylinder 1

P1342 is an OBD-II diagnostic trouble code meaning: Misfire During Start Cylinder 1. Common causes: faulty spark plug in cylinder 1, problems with the ignition coil. Estimated repair cost: $6–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–89 (est.)

Symptoms

  • Engine shakes at idle
  • Difficulty starting the engine
  • Dips during acceleration
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Faulty spark plug in cylinder 1
  • Problems with the ignition coil
  • Low cylinder compression
  • Clogged fuel injectors
  • Problems with the camshaft position sensor

How to Fix

  1. Check the condition of the spark plug in cylinder 1
  2. Diagnose the ignition coil
  3. Measure the compression in the cylinder
  4. Check fuel injector
  5. Scan camshaft and crankshaft sensors

Related codes

Error P1342 by Vehicle Brand

FAQ

What does the P1342 code mean?

P1342 is an OBD-II diagnostic trouble code that indicates: Misfire During Start Cylinder 1

What causes a P1342 error code?

The most common causes of P1342 include: Faulty spark plug in cylinder 1; Problems with the ignition coil; Low cylinder compression; Clogged fuel injectors.

How do I fix a P1342 diagnostic trouble code?

To fix P1342: Check the condition of the spark plug in cylinder 1. Diagnose the ignition coil. Measure the compression in the cylinder. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1342?

Yes, but get it checked soon

How much does it cost to fix P1342?

The estimated repair cost for P1342 is $6–89. Actual cost depends on your vehicle, location, and labor rates.

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