P151A Code - Intake Manifold Runner Controller Performance
Quick Answer
The Intake Manifold Runner Control (IMRC) system is monitored for failures. Common causes include Intake Manifold Runner Control (IMRC) control circuit open, Mechanical concern, bind, seize, damage, or obstruction of IMRC hardware. 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
- P151A indicates Intake Manifold Runner Controller Performance.
- Common causes
- Common causes include Intake Manifold Runner Control (IMRC) control circuit open, Mechanical concern, bind, seize, damage, or obstruction of IMRC hardware.
- 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 P151A Description
What are the Possible Causes of the DTC P151A?
- Intake Manifold Runner Control (IMRC) control circuit open
- Mechanical concern
- bind, seize, damage, or obstruction of IMRC hardware
- IMRC control circuit short to voltage
- IMRC VPWR circuit open
- IMRC GND circuit open
- Damaged IMRC actuator
How to Fix the DTC P151A?
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 P151A 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
- P151A Buick — Throttle Actuator Control Signal Message Counter Incorrect
- P151A Cadillac — Throttle Actuator Control Signal Message Counter Incorrect
- P151A Chevrolet — Throttle Actuator Control Signal Message Counter Incorrect
- P151A Ford — Intake Manifold Runner Controller Performance
- P151A GMC — Throttle Actuator Control Signal Message Counter Incorrect
- P151A Lincoln — Intake Manifold Runner Controller Performance
- P151A Mercury — Intake Manifold Runner Controller Performance
Frequently Asked Questions about P151A Code
1. What are the common symptoms of OBDII code P151A (Intake Manifold Runner Controller Performance)?
The common symptoms include rough idling, decreased engine performance, and the illumination of the check engine light.
2. What are the possible causes of OBDII code P151A?
Possible causes of OBDII code P151A include a faulty intake manifold runner control (IMRC) actuator, wiring issues, or a problem with the intake manifold runner control valve.
3. How can I diagnose OBDII code P151A?
Diagnosing OBDII code P151A involves using a scan tool to retrieve the trouble codes, inspecting the IMRC system for any visible damage, and testing the IMRC actuator and related components for proper functioning.
4. Can I continue driving with OBDII code P151A?
It is not recommended to continue driving with OBDII code P151A as it can lead to further engine damage and decreased fuel efficiency. It is best to address the issue promptly.
5. How can I repair OBDII code P151A?
Repairing OBDII code P151A may involve replacing the faulty IMRC actuator, repairing any damaged wiring, or cleaning the intake manifold runner control valve. It is recommended to consult a professional mechanic for proper diagnosis and repair.
6. Are there any DIY tips for fixing OBDII code P151A?
DIY tips for fixing OBDII code P151A include checking the wiring connections for any loose or damaged wires, cleaning the intake manifold runner control valve with a suitable cleaner, and ensuring proper installation of the IMRC actuator.
7. Is OBDII code P151A a common issue in certain vehicle makes and models?
OBDII code P151A can be a common issue in vehicles with variable intake manifold systems, such as certain Ford, Mazda, and Lincoln models. It is always recommended to check your specific vehicle's service bulletins for any known issues.
8. Can a dirty or clogged intake manifold cause OBDII code P151A?
Yes, a dirty or clogged intake manifold can disrupt the proper functioning of the intake manifold runner control system, leading to OBDII code P151A. Regular maintenance of the intake system can help prevent this issue.
9. How much does it typically cost to repair OBDII code P151A?
The cost to repair OBDII code P151A can vary depending on the specific cause of the issue, labor rates in your area, and the cost of replacement parts. It is advisable to get multiple quotes from reputable mechanics.
10. Can resetting the check engine light resolve OBDII code P151A?
Resetting the check engine light may temporarily turn off the warning indicator, but it will not fix the underlying issue causing OBDII code P151A. It is important to diagnose and address the root cause of the problem to prevent further complications.
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