P1151 - Lack Of Ho2S-21 Switch, Sensor Indicates Lean
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P1151 - LACK OF HO2S-21 SWITCH, SENSOR INDICATES LEAN
| Description: | A Heated Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. | ||
| Possible Causes: | See the possible causes for DTC P1130. | ||
| Diagnostic Aids: | - | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Dedicated NGV | - | GO to HA: Natural Gas Fuel Control STEP 9 | GO to HA: Natural Gas Fuel Control STEP 9 |
| All others | - | GO to H: Fuel Control STEP 17 | GO to H: Fuel Control STEP 17 |