OBD Guide
ENFRDEESPT

P1667

Fuel Injector 2 Mechanical Fault

P1667 is an OBD-II diagnostic trouble code meaning: Fuel Injector 2 Mechanical Fault. Common causes: nozzle clogged, worn injector needle. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Uneven engine operation
  • Misfire in cylinder 2
  • Increased fuel consumption
  • Loss of engine power
  • Check Engine Light Is On

Causes

  • Nozzle clogged
  • Worn injector needle
  • Damage to the injector winding
  • Injector electrical circuit malfunction
  • Mechanical failure of the injector

How to Fix

  1. Check the injector winding resistance
  2. Clean or replace the injector
  3. Check the injector electrical circuit
  4. Replace injector O-rings
  5. If necessary, replace the injector

Related codes

P1668P0202P0261

Error P1667 by Vehicle Brand

BuickCadillacChevroletFordGMGMCLincolnMercuryOldsmobileSaturn

FAQ

What does the P1667 code mean?

P1667 is an OBD-II diagnostic trouble code that indicates: Fuel Injector 2 Mechanical Fault

What causes a P1667 error code?

The most common causes of P1667 include: Nozzle clogged; Worn injector needle; Damage to the injector winding; Injector electrical circuit malfunction.

How do I fix a P1667 diagnostic trouble code?

To fix P1667: Check the injector winding resistance. Clean or replace the injector. Check the injector electrical circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1667?

Limited driving only, diagnose soon

How much does it cost to fix P1667?

The estimated repair cost for P1667 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat