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Home >> Chevrolet >> 2015 >> Camaro LS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls And Fuel - 6.2L (L99 LS3 LSA) Or 7.0L (LS7) - DTC P0335 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P2227: Barometric Pressure (BARO) Sensor >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
NOTE:

You must perform the Circuit/System Testing before proceeding with the Component Test.

Erratic Signal Test

  1. Ignition Off, remove the B17 Barometric Pressure Sensor.
  2. Install a 3 A fused jumper between the harness connector 5 V reference circuit terminal 1 and terminal 1 of the sensor. Install a jumper wire between the low reference terminal 2 of the sensor and ground.
  3. Ignition On, test for 5.2-0 V without any spikes or dropouts between the signal terminal 3 and the low reference terminal 2 while slowly applying vacuum to the sensor with the GE 23738-A  .
    • If not between 5.2 and 0 V or has spikes or dropouts 

      Replace the B17 Barometric Pressure Sensor.

    • If between 5.2 and 0 V and there are no spikes or dropouts 
  4. All OK
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