AutoCodes – Cadillac – P1346 Cadillac

P1346 Cadillac 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 Cadillac 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 3,250

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

What does this mean?

What are the Possible Causes of the DTC P1346 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac Code

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

P1346 indicates an issue with the intake camshaft position sensor system performance, often related to the timing of the camshaft.

2. What are the common symptoms of code P1346 on a Cadillac?

Symptoms may include rough idling, reduced engine power, poor fuel economy, difficulty starting, and the check engine light turning on.

3. What causes the P1346 code to appear in a Cadillac?

Common causes include a faulty camshaft position sensor, a damaged timing chain or belt, oil flow problems, or issues with the variable valve timing (VVT) system.

4. Can I drive my Cadillac with the P1346 code?

Driving with a P1346 code is not recommended, as it can lead to further engine damage or unsafe driving conditions due to reduced performance.

5. How do I diagnose the P1346 code in a Cadillac?

Diagnosis involves scanning the vehicle with an OBDII tool, inspecting the camshaft position sensor and wiring, checking the timing components, and verifying proper oil pressure.

6. How do I fix the P1346 code on my Cadillac?

Repairs may include replacing the camshaft position sensor, repairing wiring or connectors, replacing worn timing components, or addressing oil flow issues.

7. Can low oil levels cause the P1346 code on a Cadillac?

Yes, low oil levels or dirty oil can affect the variable valve timing system, leading to the P1346 code.

8. How much does it cost to fix the P1346 code on a Cadillac?

Repair costs can range from $150 to $500 or more, depending on whether the issue is with the sensor, wiring, or timing components.

9. Does a faulty camshaft position sensor always trigger the P1346 code?

Not always. While a faulty sensor is a common cause, the issue could also stem from timing chain wear, oil pressure problems, or VVT system malfunctions.

10. Can I clear the P1346 code without fixing the issue on my Cadillac?

Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the problem will likely return and could cause further damage.