P1428
EGR Temperature Sensor 1 Intake Air Temperature 2 Not Plausible
P1428 is an OBD-II diagnostic trouble code meaning: EGR Temperature Sensor 1 Intake Air Temperature 2 Not Plausible. Common causes: egr temperature sensor malfunction, intake air temperature sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- Unstable engine idling
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Illuminates
- Dips during acceleration
Causes
- EGR temperature sensor malfunction
- Intake air temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Dirty or stuck EGR valve
- Wiring Harness Problems
How to Fix
- Check temperature sensor readings with a scanner
- Inspect electrical connections and wiring harness
- Check the resistance of temperature sensors
- Clean or replace EGR valve if necessary
- Replace faulty temperature sensor
Related codes
FAQ
What does the P1428 code mean?
P1428 is an OBD-II diagnostic trouble code that indicates: EGR Temperature Sensor 1 Intake Air Temperature 2 Not Plausible
What causes a P1428 error code?
The most common causes of P1428 include: EGR temperature sensor malfunction; Intake air temperature sensor malfunction; Open or short circuit in the sensor circuit; Dirty or stuck EGR valve.
How do I fix a P1428 diagnostic trouble code?
To fix P1428: Check temperature sensor readings with a scanner. Inspect electrical connections and wiring harness. Check the resistance of temperature sensors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1428?
Yes, but get it checked soon
How much does it cost to fix P1428?
The estimated repair cost for P1428 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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