P2021 Code - Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
Quick Answer
The Intake Manifold Runner Control (IMRC) system is monitored for failure during continuous or Key On Engine Off (KOEO) self-test. Common causes include Faulty Intake Manifold Runner Position Sensor/Switch, Intake Manifold Runner Position Sensor/Switch harness is open or shorted, Intake Manifold Runner Position Sensor/Switch 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
- P2021 indicates Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2.
- Common causes
- Common causes include Faulty Intake Manifold Runner Position Sensor/Switch, Intake Manifold Runner Position Sensor/Switch harness is open or shorted, Intake Manifold Runner Position Sensor/Switch 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 P2021 Description
What are the Possible Causes of the DTC P2021?
- Faulty Intake Manifold Runner Position Sensor/Switch
- Intake Manifold Runner Position Sensor/Switch harness is open or shorted
- Intake Manifold Runner Position Sensor/Switch circuit poor electrical connection
- Mechanical concern
- bind, seize, damage, or obstruction of IMRC hardware
How to Fix the DTC P2021?
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 P2021 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
- P2021 Chrysler — Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
- P2021 Dodge — Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
- P2021 Ford — Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
- P2021 Jeep — Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
- P2021 Lincoln — Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
- P2021 Mercury — Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
- P2021 Subaru — Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2
Frequently Asked Questions about P2021 Code
1. What are common symptoms of OBDII code P2021 (Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2)?
- Common symptoms include reduced engine performance, rough idling, lack of power, and illuminated check engine light.
2. What causes OBDII code P2021 to trigger?
- The code P2021 is typically triggered by a faulty intake manifold runner position sensor/switch, damaged wiring, or a poor electrical connection.
3. How can I diagnose the cause of OBDII code P2021?
- To diagnose the issue, you can use a scan tool to check for the code, visually inspect the wiring and connectors, test the intake manifold runner position sensor, and perform a circuit check.
4. Can a dirty intake manifold cause OBDII code P2021?
- While a dirty intake manifold may not directly cause P2021, it can contribute to intake system issues that may lead to sensor malfunctions triggering the code.
5. What are the repair options for OBDII code P2021?
- Repair options include replacing the intake manifold runner position sensor/switch, repairing or replacing damaged wiring, ensuring proper electrical connections, and cleaning the intake system if needed.
6. Is it safe to continue driving with OBDII code P2021 present?
- It is generally not recommended to continue driving with the code present as it can lead to further engine issues and potential damage if left unresolved.
7. Can resetting the OBDII code P2021 clear the issue permanently?
- Resetting the code may temporarily clear the check engine light, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again.
8. How much does it typically cost to repair OBDII code P2021?
- The cost of repairing P2021 can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
9. Can a DIY enthusiast repair OBDII code P2021 at home?
- Depending on the skill level and tools available, some DIY enthusiasts may be able to address the issue themselves by following repair guides and using proper diagnostic equipment.
10. How often does OBDII code P2021 occur in vehicles?
- OBDII code P2021 related to the intake manifold runner position sensor/switch circuit low in bank 2 is a relatively common issue in vehicles with variable intake systems, particularly in older models or those with high mileage.
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