P1490 2019 Chevrolet Silverado Code - EVAP Purge Pump Voltage Sensor Performance
Quick Answer
Purge capacity is being reduced by technologies that improve fuel economy. Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump 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
- P1490 2019 Chevrolet Silverado indicates EVAP Purge Pump Voltage Sensor Performance.
- Common causes
- Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump 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 P1490 2019 Chevrolet Silverado Description
What are the Possible Causes of the DTC P1490 2019 Chevrolet Silverado?
- Faulty Evaporative Emission Purge Pump
- Evaporative Emission Purge Pump harness is open or shorted
- Evaporative Emission Purge Pump circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1490 2019 Chevrolet Silverado?
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 P1490 2019 Chevrolet Silverado 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.
Need more information about the P1490 2019 Chevrolet Silverado code?
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Frequently Asked Questions about P1490 2019 Chevrolet Silverado Code
What are the common symptoms of OBDII code P1490 in a 2019 Chevrolet Silverado?
Common symptoms of code P1490 in a 2019 Chevrolet Silverado may include the check engine light illuminating, rough idling, poor engine performance, and potential issues with fuel efficiency.
What are the possible causes of OBDII code P1490 in a 2019 Chevrolet Silverado?
Potential causes of code P1490 in a 2019 Chevrolet Silverado include a faulty EVAP purge pump voltage sensor, damaged wiring or connectors in the purge pump circuit, or a malfunctioning PCM (powertrain control module).
How can I diagnose OBDII code P1490 in a 2019 Chevrolet Silverado?
Diagnosing code P1490 typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the EVAP purge pump voltage sensor and its connections, and testing the sensor's voltage output to determine if it falls within the specified range.
What are the repair options for OBDII code P1490 in a 2019 Chevrolet Silverado?
Repair options for code P1490 may include replacing the EVAP purge pump voltage sensor, repairing or replacing damaged wiring or connectors, and resetting the fault code using an OBDII scanner after the repairs are completed.
Is it safe to continue driving a 2019 Chevrolet Silverado with OBDII code P1490?
It is not recommended to continue driving a vehicle with an active OBDII code like P1490, as it may lead to further damage to the vehicle's emissions system and potentially affect engine performance. It is best to address the issue promptly.
Can I reset OBDII code P1490 in a 2019 Chevrolet Silverado without fixing the underlying problem?
While you can use an OBDII scanner to clear the fault code temporarily, it is crucial to address the root cause of code P1490 in a 2019 Chevrolet Silverado to prevent the issue from reoccurring and potentially causing more significant problems.
How much does it typically cost to repair OBDII code P1490 in a 2019 Chevrolet Silverado?
The cost of repairing code P1490 in a 2019 Chevrolet Silverado can vary depending on the specific issue causing the fault code, the labor rates of the repair shop, and the cost of any parts that need to be replaced. It is advisable to obtain a few quotes from reputable mechanics.
Can a DIY enthusiast fix OBDII code P1490 in a 2019 Chevrolet Silverado?
While some DIY enthusiasts with the necessary tools and experience may be able to diagnose and repair code P1490 themselves, it is recommended to have the expertise of a professional mechanic, especially when dealing with complex electrical systems like the EVAP purge pump circuit.
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