P1145 Code - Intake Valve Timing Control Performance Bank 2
Quick Answer
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake valve. Common causes include Faulty Intake Valve Timing Control Solenoid Valve, Intake Valve Timing Control Solenoid Valve harness is open or shorted, Intake Valve Timing Control Solenoid 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
- P1145 indicates Intake Valve Timing Control Performance Bank 2.
- Common causes
- Common causes include Faulty Intake Valve Timing Control Solenoid Valve, Intake Valve Timing Control Solenoid Valve harness is open or shorted, Intake Valve Timing Control Solenoid 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 P1145 Description
The Engine Control Module (ECM) receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing control solenoid valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to increase engine torque in low/mid speed range and output in high-speed range.
The intake valve timing control solenoid valve changes the oil amount and direction of flow through intake valve timing control unit or stops oil flow. The longer pulse width advances valve angle. The shorter pulse width retards valve angle. When ON and OFF pulse widths become equal, the solenoid valve stops oil pressure flow to fix the intake valve angle at the control position.
What are the Possible Causes of the DTC P1145?
- Faulty Intake Valve Timing Control Solenoid Valve
- Intake Valve Timing Control Solenoid Valve harness is open or shorted
- Intake Valve Timing Control Solenoid Valve circuit poor electrical connection
- Faulty Crankshaft Position Sensor
- Faulty Camshaft Position Sensor
How to Fix the DTC P1145?
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 P1145 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
- P1145 Audi — Mass Air Flow Sensor Short To Positive
- P1145 BMW — Solenoid Valve Running Losses Control Circuit Electrical
- P1145 Buick — HO2S Cross Counts Bank 1 Sensor 3
- P1145 Cadillac — HO2S Cross Counts Bank 1 Sensor 3
- P1145 Chevrolet — HO2S Cross Counts Bank 1 Sensor 3
- P1145 Ford — Calculated Torque Error
- P1145 GMC — HO2S Cross Counts Bank 1 Sensor 3
- P1145 Hyundai — Main Duty Solenoid Malfunction
- P1145 Infiniti — Intake Valve Timing Control Performance Bank 2
- P1145 MINI — Solenoid Valve Running Losses Control Circuit Electrical
- P1145 Nissan — Intake Valve Timing Control Performance Bank 2
- P1145 Volkswagen — Mass Air Flow Sensor Short To Positive
Frequently Asked Questions about P1145 Code
1. What are common symptoms of OBDII code P1145 (Intake Valve Timing Control Performance Bank 2)?
- Common symptoms include rough idling, decreased engine performance, and potential stalling.
2. What are the possible causes of OBDII code P1145?
- Potential causes include a faulty intake valve timing control solenoid, wiring issues, or a malfunctioning camshaft position sensor.
3. How can I diagnose the issue related to OBDII code P1145?
- Diagnosing requires a thorough inspection of the intake valve timing control components, checking for wiring faults, and testing the camshaft position sensor.
4. Can driving with OBDII code P1145 cause further damage to the vehicle?
- Continuing to drive with this code can potentially lead to reduced engine efficiency and long-term damage if left unresolved.
5. How can I repair OBDII code P1145?
- Repair may involve replacing the intake valve timing control solenoid, repairing any damaged wiring, or replacing the camshaft position sensor as needed.
6. Is it safe to continue driving my vehicle with OBDII code P1145?
- It is not recommended to drive with this code active, as it can affect engine performance and potentially lead to more serious issues.
7. Can OBDII code P1145 be triggered by a loose gas cap?
- No, this code is related to intake valve timing control performance and is not typically associated with a loose gas cap.
8. How much does it cost to repair OBDII code P1145 at a mechanic?
- Repair costs can vary depending on the specific issue, but generally, expect to pay for parts and labor for the necessary repairs.
9. Can I reset OBDII code P1145 on my own using a diagnostic tool?
- Yes, you can reset the code using an OBDII diagnostic tool, but it is important to address the underlying issue that triggered the code.
10. Will OBDII code P1145 cause my vehicle to fail an emissions test?
- Yes, this code can lead to emissions test failure due to its impact on engine performance and emissions control systems.
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