OBD Guide

P1262

Cylinder #2 High To Low Side Short

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • The engine is unstable or stalls
  • Loss of engine power
  • Increased fuel consumption
  • Check Engine Light Is On
  • Possible misfire in cylinder No. 2

Causes

  • Malfunction of the fuel injector of cylinder No. 2
  • Open or short circuit in the injector control circuit
  • Poor contact in the injector connector
  • Wiring harness damage
  • Engine ECU malfunction (rare)

How to Fix

  1. Check the resistance of the fuel injector of cylinder No. 2
  2. Inspect the injector wiring and connectors for damage.
  3. Check the integrity of the control circuit from the computer to the injector
  4. If necessary, replace the fuel injector or repair the wiring
  5. If the problem persists, check the ECU output signals.

Related codes

Error P1262 by Vehicle Brand