P1145 Infiniti 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 Infiniti 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 Infiniti 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 Infiniti?
- 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 Infiniti?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1145 Infiniti 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 P1145 Infiniti Code
1. What are common symptoms of OBDII code P1145 in an Infiniti related to Intake Valve Timing Control Performance Bank 2?
- Common symptoms include rough idling, reduced engine performance, and potential stalling.
2. What are the possible causes of OBDII code P1145 in an Infiniti related to Intake Valve Timing Control Performance Bank 2?
- Possible causes include a faulty intake valve timing control solenoid, wiring issues, or problems with the timing control valve itself.
3. How can I diagnose OBDII code P1145 in an Infiniti related to Intake Valve Timing Control Performance Bank 2?
- Diagnosis typically involves using a scan tool to read the code, performing a visual inspection of related components, and testing the intake valve timing control solenoid.
4. Can driving with OBDII code P1145 in an Infiniti related to Intake Valve Timing Control Performance Bank 2 cause further damage?
- Continued driving with this code can potentially lead to engine damage or decreased fuel efficiency, so it's recommended to address the issue promptly.
5. Is it safe to continue driving my Infiniti with OBDII code P1145 related to Intake Valve Timing Control Performance Bank 2?
- It's not recommended to drive the vehicle with this code present, as it can impact the engine's performance and potentially lead to further issues.
6. How can I repair OBDII code P1145 in my Infiniti related to Intake Valve Timing Control Performance Bank 2?
- Repair typically involves replacing the faulty intake valve timing control solenoid, addressing any wiring issues, and resetting the code.
7. Are there any DIY tips for fixing OBDII code P1145 in an Infiniti related to Intake Valve Timing Control Performance Bank 2?
- While some may attempt to replace the intake valve timing control solenoid themselves, it's recommended to consult with a professional mechanic for proper diagnosis and repair.
8. How much does it cost to repair OBDII code P1145 in an Infiniti related to Intake Valve Timing Control Performance Bank 2?
- Repair costs can vary depending on the exact issue, but expect to pay for parts and labor, which can range from a couple of hundred to several hundred dollars.
9. Can a clogged oil passage be a potential cause of OBDII code P1145 in an Infiniti related to Intake Valve Timing Control Performance Bank 2?
- Yes, a clogged oil passage can restrict the flow of oil to the timing control components, leading to performance issues and triggering this code.
10. Is it necessary to clear the OBDII code P1145 after repairing the issue in an Infiniti related to Intake Valve Timing Control Performance Bank 2?
- Yes, it's important to clear the code after the repair to reset the system and ensure the issue has been properly addressed.
Discuss the causes and fixes for P1145 Infiniti OBDII Code
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The valve is under the upper radiator hose. Here is the only image I got:
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