Barometric Pressure - Turbocharger/Supercharger Boost Sensor A Correlation

Descripción

This code indicates a disagreement between the barometric pressure sensor and the turbocharger/supercharger boost sensor. The car's computer expects these readings to be related, and a significant difference suggests a problem with one or both sensors or the turbo system.

Pasos de reparación

1. 1 Check for other related diagnostic trouble codes (DTCs) that may help pinpoint whether the barometric pressure sensor or the boost sensor is at fault.
2. 2 Inspect the wiring and electrical connectors for both the barometric pressure (BARO) sensor and the turbocharger/supercharger boost sensor for damage, corrosion, or loose connections.
3. 3 Inspect all boost system hoses, intercooler piping, and clamps for leaks, cracks, or disconnections that could cause a boost pressure discrepancy.
4. 4 Check the barometric pressure sensor readings with a scan tool at key-on, engine-off and compare to known atmospheric pressure for your altitude; replace the sensor if readings are out of range.
5. 5 Check the turbocharger/supercharger boost sensor readings with a scan tool at idle and under load; replace the sensor if readings do not match expected values.
6. 6 Inspect the turbocharger/supercharger wastegate or bypass valve for proper operation, checking for stuck, binding, or damaged components.
7. 7 Replace the barometric pressure sensor if it is reading incorrectly or failing correlation checks with the boost sensor.
8. 8 Replace the turbocharger/supercharger boost sensor if it is providing inaccurate or erratic readings.
9. 9 Repair or replace the wastegate or bypass valve if it is not functioning correctly and causing abnormal boost pressure readings.

Diagnóstico y costo