Difference between revisions of "17544/P1136/004406"
From Ross-Tech Wiki
| Line 18: | Line 18: | ||
** Check Brake Booster and Hoses | ** Check Brake Booster and Hoses | ||
** Check Electric Vacuum Pump ( If Applicable ) | ** Check Electric Vacuum Pump ( If Applicable ) | ||
| − | ** Check Crankcase Ventilation System for faulty components | + | ** Check Crankcase Ventilation System for faulty components. When the PCV or Crankcase Ventilation System is faulty, vacuum is typically present under the oil cap and misfire faults are common. |
[[Category:Fault Codes]] | [[Category:Fault Codes]] | ||
Latest revision as of 13:23, 6 August 2012
17544/P1136/004406 - Fuel Trim: Bank 1 (Add): System too Lean
Possible Solutions
- Check Mass Air Flow (MAF) Sensor
- Check Fuel Pressure Regulator
- Check Fuel Pump
- Check Intake/Exhaust System for Leaks
- Check Secondary Air Injection for Leaks
- Check Vacuum Lines for Leaks
Special Notes
- Fuel Trim Info
- When this fault is stored and external vacuum leaks are not found, less obvious problems may be present:
- Check Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)
- Check Brake Booster and Hoses
- Check Electric Vacuum Pump ( If Applicable )
- Check Crankcase Ventilation System for faulty components. When the PCV or Crankcase Ventilation System is faulty, vacuum is typically present under the oil cap and misfire faults are common.