California Emission Regulation Applicable ATX Model: Notes
DTC P2195 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P2195 |
Front HO2S signal stuck lean |
| DETECTION CONDITION |
- The PCM monitors the front HO2S output current when the following conditions are met. If the average output current is more than 1.2 A
for 25 s
, the PCM determines that the front HO2S signal remains lean.
MONITORING CONDITION
- ECT: more than 70°C {158°F}
- Engine speed: 1, 000-3, 200 RPM
- MAF amount: 60-80 g/s {0.80-10.58 lb/min}
- Target A/F feedback system status: feedback control
- Output voltage from the middle HO2S: more than 0.2 V
Diagnostic support note
- This is an intermittent monitor (HO2S).
- MIL illuminates if PCM detects above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM.
- PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
- FREEZE FRAME DATA is available.
- The DTC is stored in the PCM memory.
|
| POSSIBLE CAUSE |
- Front HO2S malfunction
- Fuel injector malfunction
- Insufficient fuel line pressure
- Leakage exhaust gas
- Air suction at intake-air system malfunction
- Leakage fuel
- MAF sensor malfunction
- ECT sensor malfunction
- PCM malfunction
|