P1512 Mazda Code - Intake Manifold Runner Control Stuck Closed Bank 1
Quick Answer
The Intake Manifold Runner Control (IMRC) is an electrically actuated system consisting of a motorized actuator with an attaching linkage for each housing on each bank. Common causes include Faulty Intake Manifold Runner Control (IMRC) actuator, Intake Manifold Runner Control actuator harness is open or shorted, Intake Manifold Runner Control actuator 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
- P1512 Mazda indicates Intake Manifold Runner Control Stuck Closed Bank 1.
- Common causes
- Common causes include Faulty Intake Manifold Runner Control (IMRC) actuator, Intake Manifold Runner Control actuator harness is open or shorted, Intake Manifold Runner Control actuator 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 P1512 Mazda Description
What are the Possible Causes of the DTC P1512 Mazda?
- Faulty Intake Manifold Runner Control (IMRC) actuator
- Intake Manifold Runner Control actuator harness is open or shorted
- Intake Manifold Runner Control actuator circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1512 Mazda?
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 P1512 Mazda 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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Frequently Asked Questions about P1512 Mazda Code
1. What does the OBDII code P1512 mean for a Mazda?
P1512 indicates that the Intake Manifold Runner Control (IMRC) is stuck closed on Bank 1, which can affect engine performance and efficiency.
2. What are the common symptoms of code P1512 in a Mazda?
Symptoms include reduced engine power, poor acceleration, rough idling, decreased fuel efficiency, and possibly an illuminated Check Engine Light.
3. What causes the P1512 code in a Mazda?
Common causes include a faulty IMRC actuator, stuck intake manifold runner flaps, broken control linkage, wiring issues, or carbon buildup in the intake manifold.
4. How do I diagnose the P1512 code in my Mazda?
Start by inspecting the IMRC actuator and linkage for damage, checking for carbon buildup in the intake manifold, and testing the wiring and connectors for continuity.
5. Can I drive my Mazda with the P1512 code?
Driving with this code is possible but not recommended, as it can reduce engine efficiency and cause further damage over time.
6. How can I fix the P1512 code on my Mazda?
Repairs may include cleaning or replacing the IMRC actuator, cleaning carbon deposits from the intake manifold, repairing damaged wiring, or replacing broken control linkage.
7. Is the P1512 code specific to one side of the engine?
Yes, the “Bank 1†designation refers to the side of the engine containing cylinder 1.
8. How much does it cost to repair the P1512 code in a Mazda?
Repair costs vary, but cleaning carbon buildup may cost $150-$300, while actuator replacement could range from $200 to $600 depending on parts and labor.
9. What tools are needed to fix the P1512 code in a Mazda?
You’ll need basic hand tools, a diagnostic scanner, cleaning supplies for carbon deposits, and possibly a multimeter for electrical testing.
10. Can a dirty air filter cause the P1512 code on a Mazda?
While a dirty air filter doesn’t directly cause P1512, it can contribute to intake airflow issues that exacerbate IMRC problems.
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