Engine-Codes - Gmc - P1320 GMC

P1320 GMC - IC Module 4X Reference Circuit Intermittent No Pulses

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P1320 GMC Possible Causes

  • Faulty or worn out spark plugs
  • Faulty fuel injectors
  • Faulty Camshaft Position Sensor
  • Faulty Crankshaft Position Sensor

How do I fix code P1320 GMC?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P1320 GMC code

Labor: 1.0

The cost of diagnosing the P1320 GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine misfire

P1320 GMC Meaning

With the engine speed over 568 rpm, the Powertrain Control module (PCM) did not receive any 4X Fuel Control pulses for 400 ms.

P1320 GMC More Information

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