16556/P0172 - System Too Rich, Bank 1
Possible Symptoms
Possible Causes
There's a few simple things on there that might have caused the error... ovefilling the oil, boost leak etc... prob work through those before looking at the more serious causes!
16490/P0106/000262 - Manifold / Barometric Pressure Sensor (G71) / (F96): Implausible Signal
Possible Symptoms
Possible Causes
Possible Solutions
Special Notes
On certain smaller Engines we've seen cases where a buggy Engine Control Unit Firmware can cause these fault codes, additionally there are known Problems with the Timing Chain Tensioners which can also result in these fault codes. Please refer to the related TPL/TSB for more instructions.
Possible Symptoms
- Irregular behaviour
Possible Causes
- Fuel system
- Excessive fuel pressure
- Leaking or contaminated fuel injectors
- Leaking fuel pressure regulator
- Low fuel pressure or running out of fuel
- Vapor recovery system
- Air leaks after the MAF
- Vacuum leaks
- Improper seated engine oil dipstick
- Stuck EGR valve
- Oil overfill
- Cam timing
- Cylinder compression
- Exhaust leaks before or near HO2Ss
There's a few simple things on there that might have caused the error... ovefilling the oil, boost leak etc... prob work through those before looking at the more serious causes!
16490/P0106/000262 - Manifold / Barometric Pressure Sensor (G71) / (F96): Implausible Signal
Possible Symptoms
- Erratic Idle
Possible Causes
- Wiring and/or Connections from/to Manifold/Barometric Pressure Sensor (G71)/(F96) faulty
- Leak in Air Intake and/or Exhaust
- Manifold/Barometric Pressure Sensor (G71)/(F96) faulty
- Engine Control Module faulty
Possible Solutions
- Check Engine Control Module Software Version (See Special Notes for Details)
- Check Timing (See Special Notes for Details)
- Check Wiring and/or Connections from/to Manifold/Barometric Pressure Sensor (G71)/(F96)
- Check for Leak in Air Intake and/or Exhaust
- Check/Replace Manifold/Barometric Pressure Sensor (G71)/(F96)
- Check/Replace Engine Controle Module
Special Notes
On certain smaller Engines we've seen cases where a buggy Engine Control Unit Firmware can cause these fault codes, additionally there are known Problems with the Timing Chain Tensioners which can also result in these fault codes. Please refer to the related TPL/TSB for more instructions.
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