Turbocharger Inlet Pressure Sensor Circuit
The P2574 code means the vehicle's onboard diagnostic system has detected: Turbocharger Inlet Pressure Sensor Circuit. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $600 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Reduced turbo performance
- Engine hesitation under boost
- Poor fuel economy under load
- Occasional limp mode
Probable Causes (Ranked by Likelihood)
- Faulty turbocharger inlet pressure sensor Very High
- Damaged or disconnected sensor connector High
- Vacuum/pressure line to sensor blocked or leaking Moderate
- PCM software calibration issue Low
Step-by-Step Diagnostic Procedure
-
Read freeze frame data and confirm P2574 is present
-
Inspect turbo inlet pressure sensor connector and wiring
-
Check pressure line to sensor for cracks or blockage
-
Compare inlet pressure readings with boost pressure at various RPMs
Frequently Asked Questions
What does P2574 mean?
P2574 indicates a malfunction in the turbocharger inlet pressure sensor circuit, which monitors air pressure entering the turbocharger compressor.
Can I drive with a P2574 code?
You can drive short distances with reduced turbo performance. The engine management may limit boost to protect the turbocharger.
How much does it cost to fix P2574?
Repairs range from $200 to $600 depending on whether the sensor, wiring, or pressure line needs attention.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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