P1345 Pontiac Code - Crankshaft Position-Camshaft Position Correlation
Quick Answer
The Crankshaft Position (CKP) sensor is a permanent magnet generator, known as a variable reluctance sensor. Common causes include Engine mechanical condition-Valve timing off, Cam sensor or crank sensor are loose on their mounting, Faulty camshaft position sensor. 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
- P1345 Pontiac indicates Crankshaft Position-Camshaft Position Correlation.
- Common causes
- Common causes include Engine mechanical condition-Valve timing off, Cam sensor or crank sensor are loose on their mounting, Faulty camshaft position sensor.
- 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 P1345 Pontiac Description
The Camshaft Position (CMP) sensor is triggered by a notched reluctor wheel built into the exhaust camshaft sprocket. The CMP sensor provides 6 signal pulses every camshaft revolution. Each notch, or feature of the reluctor wheel is of a different size for individual cylinder identification. This means the CMP and crankshaft position (CKP) signals are pulse width encoded to enable the Powertrain Control Module (PCM) to constantly monitor their relationship. This relationship is used to determine camshaft actuator position and control its phasing at the correct value. The PCM also uses this signal to identify the compression stroke of each cylinder, and for sequential fuel injection. The CMP sensor is connected to the PCM by a 12-volt, low reference, and signal circuit.
What are the Possible Causes of the DTC P1345 Pontiac?
- Engine mechanical condition-Valve timing off
- Cam sensor or crank sensor are loose on their mounting
- Faulty camshaft position sensor
- Faulty crankshaft position sensor
How to Fix the DTC P1345 Pontiac?
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
If a P0016 or P1345 is resetting without any engine performance concerns but the above information did not isolate a cause for the DTC, replace the Cam Phaser Actuator sprocket.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1345 Pontiac 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 P1345 Pontiac Code
What does the OBDII code P1345 mean on a Pontiac?
The P1345 code indicates a Crankshaft Position-Camshaft Position Correlation issue, meaning the timing between the crankshaft and camshaft is misaligned.
What are the common symptoms of the P1345 code in a Pontiac?
Symptoms include engine misfires, rough idling, poor acceleration, reduced fuel efficiency, and the Check Engine Light illuminating.
What causes the P1345 code on a Pontiac?
Common causes include a misaligned timing chain or belt, a faulty camshaft or crankshaft position sensor, or improper installation of the distributor in certain models.
Can a faulty camshaft sensor trigger the P1345 code?
Yes, a malfunctioning camshaft sensor can cause the P1345 code by providing incorrect timing data to the engine control module (ECM).
How do I diagnose the P1345 code on my Pontiac?
Diagnosis involves checking the timing chain or belt alignment, inspecting the camshaft and crankshaft position sensors, and using a scan tool to verify timing correlation data.
Can the P1345 code damage my Pontiac's engine if ignored?
Yes, ignoring the P1345 code can lead to severe engine damage over time due to incorrect ignition timing and potential misfires.
How is the P1345 code fixed on a Pontiac?
Repairs may include realigning the timing chain or belt, replacing faulty sensors, or correcting distributor positioning if applicable.
Can I drive my Pontiac with the P1345 code active?
It’s not recommended to drive with this code active, as it can cause poor performance, increased fuel consumption, and potential engine damage.
Will resetting the Check Engine Light fix the P1345 code?
No, resetting the light won’t fix the underlying issue. The root cause of the timing misalignment must be addressed to resolve the code.
Do I need special tools to fix the P1345 code on a Pontiac?
Yes, tools like a scan tool, timing light, and sometimes specialty tools for adjusting the timing chain or distributor may be required.
Discuss the causes and fixes for P1345 Pontiac OBDII Code
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