OBD Guide

P127E

Fuel Injector 8 Input Circuit Malfunction

P127E is an OBD-II diagnostic trouble code meaning: Fuel Injector 8 Input Circuit Malfunction. Common causes: open or short circuit in the injector circuit, fuel injector malfunction. Estimated repair cost: $17–89.

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

Symptoms

  • Unstable engine operation
  • Misfire in cylinder 8
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Reduced engine power

Causes

  • Open or short circuit in the injector circuit
  • Fuel injector malfunction
  • Poor contact in the injector connector
  • Wiring harness damage
  • Engine control unit malfunction

How to Fix

  1. Check the resistance of the injector of cylinder 8
  2. Inspect the injector connector and wiring for damage.
  3. Check the voltage at the injector while the engine is running.
  4. Replace the faulty injector if necessary
  5. Clean or replace the connector if there is poor contact

Related codes

FAQ

What does the P127E code mean?

P127E is an OBD-II diagnostic trouble code that indicates: Fuel Injector 8 Input Circuit Malfunction

What causes a P127E error code?

The most common causes of P127E include: Open or short circuit in the injector circuit; Fuel injector malfunction; Poor contact in the injector connector; Wiring harness damage.

How do I fix a P127E diagnostic trouble code?

To fix P127E: Check the resistance of the injector of cylinder 8. Inspect the injector connector and wiring for damage.. Check the voltage at the injector while the engine is running.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P127E?

Yes, but get it checked soon

How much does it cost to fix P127E?

The estimated repair cost for P127E is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat