Engine-Codes - Generic - P1077

P1077 Code - Intake Manifold Runner Control System Malfunction Low RPM

- Code Popularity: 10,475 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the P1077 Code?

  • Faulty Intake Manifold Runner Control (IMRC) Valve
  • IMRC Valve harness is open or shorted
  • IMRC Valve circuit poor electrical connection

|How to Fix the P1077 Code?

Start by checking 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.

|What is the cost to diagnose the P1077 code?

Labor: 1.0

The cost to diagnose the P1077 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are P1077 code possible symptoms?

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

|What Does the P1077 Code Mean?

Engine power is achieved by closing and opening the Intake Manifold Runner Control (IMRC) valve. When the valve is closed, there is high torque at low engine speed. When the valve is open, there is high torque a high engine speed.

Intake Manifold Runner Control System Malfunction Low RPM

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