P2199 2018 Chevrolet Silverado Code - Intake Air Temperature Sensor 1-2 Not Plausible
Quick Answer
The following sensors are integrated within the Mass Air Flow/Multifunction Intake Air Sensor: IAT sensor 1, IAT sensor 2, Humidity sensor, MAF sensor, and BARO pressure sensor. Common causes include Faulty Intake Air Temperature (IAT) (integrated within Mass Air Flow/Multifunction Intake Air Sensor), Intake Air Temperature harness is open or shorted, Intake Air Temperature 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
- P2199 2018 Chevrolet Silverado indicates Intake Air Temperature Sensor 1-2 Not Plausible.
- Common causes
- Common causes include Faulty Intake Air Temperature (IAT) (integrated within Mass Air Flow/Multifunction Intake Air Sensor), Intake Air Temperature harness is open or shorted, Intake Air Temperature 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 P2199 2018 Chevrolet Silverado Description
The Intake Air Temperature (IAT) Sensor is a variable resistor that changes the voltage on the Engine Control Module (ECM) supplied 5 V signal circuit. The signal varies with the inlet air temperature in the sensor bore. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the absolute difference between the IAT sensor 1 and the IAT sensor 2 temperatures is greater than 55°C (99°F) for longer than 5 s.
What are the Possible Causes of the DTC P2199 2018 Chevrolet Silverado?
- Faulty Intake Air Temperature (IAT) (integrated within Mass Air Flow/Multifunction Intake Air Sensor)
- Intake Air Temperature harness is open or shorted
- Intake Air Temperature circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2199 2018 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 P2199 2018 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.
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Frequently Asked Questions about P2199 2018 Chevrolet Silverado Code
1. What does the OBDII code P2199 mean for a 2018 Chevrolet Silverado?
P2199 indicates that the intake air temperature sensors 1 and 2 are providing inconsistent or implausible readings to the engine control module.
2. What are the common symptoms of P2199 in a 2018 Chevrolet Silverado?
Symptoms can include reduced engine performance, poor fuel efficiency, rough idling, difficulty starting, and the check engine light being illuminated.
3. What causes the P2199 code in a 2018 Chevrolet Silverado?
Causes may include a faulty intake air temperature sensor, damaged wiring or connectors, debris blocking the sensor, or issues with the engine control module.
4. How can I diagnose the P2199 code on my 2018 Chevrolet Silverado?
Use an OBDII scanner to confirm the code and inspect the intake air temperature sensors, wiring, and connectors for damage or debris.
5. Can driving with the P2199 code damage my 2018 Chevrolet Silverado?
Driving with this code might lead to inefficient engine performance and potential long-term damage to engine components if not addressed promptly.
6. How do I fix the P2199 code on a 2018 Chevrolet Silverado?
Repair steps include cleaning or replacing the intake air temperature sensors, repairing damaged wiring or connectors, and resetting the code with an OBDII scanner.
7. How much does it cost to repair the P2199 code on a 2018 Chevrolet Silverado?
Costs vary, but replacing an intake air temperature sensor typically ranges from $50 to $150 for parts, plus labor costs if done by a mechanic.
8. Can I fix the P2199 code myself on a Chevrolet Silverado?
Yes, if you’re comfortable working with sensors and wiring. DIY repair involves inspecting, cleaning, or replacing the intake air temperature sensors and ensuring proper connections.
9. How do intake air temperature sensors affect engine performance?
These sensors monitor air temperature entering the engine, helping the ECM adjust fuel and air mixture for optimal performance. Faulty readings can disrupt this balance.
10. Will resetting the check engine light fix the P2199 code?
Resetting the light won’t fix the underlying issue. The code will likely return unless the root cause, such as a faulty sensor or wiring issue, is repaired.
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