AutoCodes – Pontiac – P1346 Pontiac

P1346 Pontiac Code - Intake Camshaft Position Sensor System Performance

Quick Answer

The Camshaft Position (CMP) sensor input is used to detect an engine misfire. Common causes include Faulty Intake Camshaft Position sensor, Faulty Camshaft Position Solenoid Valve, Engine mechanical condition. 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: P1346 Pontiac indicates Intake Camshaft Position Sensor System Performance.
Common causes: Common causes include Faulty Intake Camshaft Position sensor, Faulty Camshaft Position Solenoid Valve, Engine mechanical condition.
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.

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Code Popularity 4,542

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1346 Pontiac Description

The Camshaft Position (CMP) sensor input is used to detect an engine misfire. The Powertrain Control Module (PCM) also uses the CMP sensor signal as an input for modifying the fuel injection timing and for modifying the ignition timing.
The PCM receives information on the engine status from various engine sensors and then selects the most appropriate ignition timing settings from within the PCM's programming. The following are the most important inputs for determining ignition timing requirements:
- The engine speed
- The throttle position (TP)
- The intake air volume
- The engine coolant temperature (ECT)
- The knock sensor (KS) input

OBDII Code P1346 Pontiac - Intake Camshaft Position Sensor System Performance - AutoCodes.com — P1346 Pontiac Code - Intake Camshaft Position Sensor System Performance

What does this mean?

What are the Possible Causes of the DTC P1346 Pontiac?

Faulty Intake Camshaft Position sensor
Faulty Camshaft Position Solenoid Valve
Engine mechanical condition
Valve timing off
Intake Camshaft Position sensor harness is open or shorted
Intake Camshaft Position sensor circuit poor electrical connection

How to Fix the DTC P1346 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1346 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1346 Pontiac Code

1. What does the OBDII code P1346 mean for a Pontiac?

P1346 indicates a problem with the intake camshaft position sensor system, specifically related to its performance or timing.

2. What are common symptoms of code P1346 in a Pontiac?

Symptoms may include rough idling, decreased engine performance, poor fuel efficiency, stalling, or difficulty starting the vehicle.

3. What causes the P1346 code to appear on a Pontiac?

Possible causes include a faulty camshaft position sensor, issues with the timing chain or belt, incorrect valve timing, or wiring and connector problems.

4. Can driving with a P1346 code damage my Pontiac's engine?

Yes, prolonged driving with this code can lead to engine damage due to improper timing and increased wear on internal components.

5. How can I fix the P1346 code on my Pontiac?

Repair might involve replacing the camshaft position sensor, inspecting and adjusting the timing chain or belt, or repairing damaged wiring or connectors.

6. How do I know if the camshaft position sensor is faulty?

A faulty sensor may cause inconsistent RPMs, poor acceleration, or failure to start. Testing the sensor with a multimeter can confirm if it's malfunctioning.

7. Can low oil levels trigger the P1346 code on a Pontiac?

Yes, insufficient or dirty oil can affect the camshaft's performance and timing, potentially triggering this code.

8. What tools do I need to diagnose the P1346 code on my Pontiac?

Youâ€™ll need an OBDII scanner, a multimeter for electrical testing, and possibly timing tools to inspect the camshaft and timing components.

9. How much does it typically cost to repair the P1346 code on a Pontiac?

Costs vary depending on the issue, ranging from $100 for a sensor replacement to $1,000 or more for timing chain or belt repairs.

10. Can I clear the P1346 code without fixing the problem?

Clearing the code without addressing the issue may temporarily turn off the warning light, but the problem will likely persist and re-trigger the code.