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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 364 (Engine Controls And Fuel - 5.3L, 6.0L & 6.2L - DTC P0443 Through DTC P3449 And Troubleshooting) >> Diagnostic Information and Procedures >> DTC P2270 or P2272 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P2270 

The ECM does not detect a HO2S voltage greater than 805 mV before accumulated mass air flow exceeds 550 grams.

P2272 

The ECM does not detect a HO2S voltage greater than 775 mV before the accumulated mass air flow exceeds 82 grams.

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