DTC P2099: Post Catalyst Fuel Trim System Too Rich Bank 2
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DTC P2099: POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 2
| Description: | The PCM monitors the correction value from downstream heated oxygen sensor (HO2S) as part of the fore-aft oxygen sensor control routine. This DTC sets when the correction value is greater than a calibrated limit. | ||
| Possible Causes: |
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| Diagnostic Aids: | Inspect the connectors for signs of damage, water ingress, or corrosion. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DZ . | ||