P2436 Code - Secondary Air Injection System Pressure Sensor Performance Bank 2
Quick Answer
The secondary air injection system aids in the reduction of hydrocarbon emissions during a cold start. Common causes include Faulty Secondary Air Injection Pump Relay, Faulty Secondary Air Injection Pump, Secondary Air Injection Pump harness is open or shorted. 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
- P2436 indicates Secondary Air Injection System Pressure Sensor Performance Bank 2.
- Common causes
- Common causes include Faulty Secondary Air Injection Pump Relay, Faulty Secondary Air Injection Pump, Secondary Air Injection Pump harness is open or shorted.
- 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 P2436 Description
Ignition voltage is supplied to the secondary air injection pump and air injection shutoff/check valve relays. The ECM controls the relays by grounding the control circuits, which activates the relays. When the relay contacts close, voltage is supplied to the pump and the valves, which turns the pump on and opens the valves.
The Diagnostic Trouble Code (DTC) will set when the ECM determines that the pressure sensor value change at either shutoff/check valve and the signal variation are not to factory specification when the air injection pump is commanded ON.
What are the Possible Causes of the DTC P2436?
- Faulty Secondary Air Injection Pump Relay
- Faulty Secondary Air Injection Pump
- Secondary Air Injection Pump harness is open or shorted
- Secondary Air Injection Pump circuit poor electrical connection
How to Fix the DTC P2436?
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 P2436 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.
Need more information about the P2436 code?
Need more information on how to fix the P2436 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2436 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P2436 Buick — Secondary Air Injection System Pressure Sensor Performance Bank 2
- P2436 Cadillac — Secondary Air Injection System Pressure Sensor Performance Bank 2
- P2436 Chevrolet — Secondary Air Injection System Pressure Sensor Performance Bank 2
- P2436 Dodge — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank 2
- P2436 GMC — Secondary Air Injection System Pressure Sensor Performance Bank 2
Frequently Asked Questions about P2436 Code
1. What are the common symptoms of OBDII code P2436?
- Common symptoms include illuminated check engine light, rough idling, reduced engine performance, and possible engine misfires.
2. What does OBDII code P2436 indicate?
- OBDII code P2436 indicates a problem with the Secondary Air Injection System Pressure Sensor in Bank 2 of the vehicle.
3. What are the possible causes of OBDII code P2436?
- Possible causes include a faulty Secondary Air Injection System Pressure Sensor, damaged wiring or connectors, vacuum leaks, or issues with the air injection system.
4. How can I diagnose the issue related to OBDII code P2436?
- Diagnosing the issue involves using a scan tool to read the code, inspecting the Secondary Air Injection System Pressure Sensor and related components, and checking for any visible damage or loose connections.
5. Can I continue driving with OBDII code P2436 present?
- It is not recommended to continue driving with this code present, as it can lead to further damage to the vehicle and may cause emissions-related issues.
6. How can I repair OBDII code P2436?
- Repairing the issue may involve replacing the faulty Secondary Air Injection System Pressure Sensor, repairing damaged wiring or connectors, fixing vacuum leaks, or addressing any issues with the air injection system.
7. Are there any DIY tips for addressing OBDII code P2436?
- DIY tips include checking for any visible damage to the sensor and its connections, ensuring proper wiring connections, and inspecting for any vacuum leaks in the system.
8. Will resetting the check engine light resolve OBDII code P2436?
- Simply resetting the check engine light will not resolve the underlying issue causing OBDII code P2436. It is important to diagnose and address the root cause of the problem.
9. How can a mechanic help fix OBDII code P2436?
- A mechanic can conduct a thorough diagnostic to pinpoint the exact cause of the issue, perform necessary repairs or replacements, and ensure that the Secondary Air Injection System Pressure Sensor is functioning properly.
10. Is OBDII code P2436 a serious issue?
- While OBDII code P2436 may not always cause immediate drivability issues, it is important to address it promptly to prevent any further complications with the vehicle's emissions system and overall performance.
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