P1077 Code - Intake Manifold Runner Control System Malfunction Low RPM
Quick Answer
Engine power is achieved by closing and opening the Intake Manifold Runner Control (IMRC) valve. Common causes include Faulty Intake Manifold Runner Control (IMRC) Valve, IMRC Valve harness is open or shorted, IMRC Valve circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1077 indicates Intake Manifold Runner Control System Malfunction Low RPM.
- Common causes
- Common causes include Faulty Intake Manifold Runner Control (IMRC) Valve, IMRC Valve harness is open or shorted, IMRC Valve circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1077 Description
What are the Possible Causes of the DTC P1077?
- Faulty Intake Manifold Runner Control (IMRC) Valve
- IMRC Valve harness is open or shorted
- IMRC Valve circuit poor electrical connection
How to Fix the DTC P1077?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1077 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P1077 Acura — Intake Manifold Runner Control System Malfunction Low RPM
- P1077 Honda — Intake Manifold Runner Control System Malfunction Low RPM
Frequently Asked Questions about P1077 Code
1. What are the common symptoms of OBDII code P1077?
- Common symptoms include rough idling, decreased engine performance, and potential stalling at low RPMs.
2. What causes the OBDII code P1077 to trigger?
- The code is usually triggered by a malfunction in the intake manifold runner control system, particularly at low RPMs.
3. How can I diagnose the issue related to code P1077?
- Diagnosing the issue typically involves inspecting the intake manifold runner control system for any faults, such as stuck or damaged components.
4. Can a dirty or clogged intake manifold cause code P1077?
- Yes, a dirty or clogged intake manifold can restrict airflow and lead to issues with the intake manifold runner control system, triggering code P1077.
5. What is the recommended repair for OBDII code P1077?
- The recommended repair often involves cleaning or replacing the intake manifold runner control system components causing the malfunction.
6. Is it safe to continue driving with OBDII code P1077?
- It is not recommended to continue driving with the code triggered, as it can potentially lead to further engine performance issues or damage.
7. Can a faulty intake manifold runner control valve cause code P1077?
- Yes, a faulty intake manifold runner control valve can cause the system to malfunction at low RPMs, triggering code P1077.
8. Are there any DIY repair tips for addressing code P1077?
- DIY repair tips may include checking and cleaning the intake manifold runner control system components, as well as ensuring proper connections.
9. Can a disconnected or damaged vacuum line cause code P1077?
- Yes, a disconnected or damaged vacuum line connected to the intake manifold runner control system can lead to issues triggering code P1077.
10. How important is it to address OBDII code P1077 promptly?
- It is important to address the code promptly to prevent potential engine performance issues and ensure the vehicle runs smoothly.
Discuss the causes and fixes for P1077 OBDII Code
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