Buick LaCrosse failure because of to air stream engine fault lights

A mileage of about 150,000 km, mvp key programmer manual equipped LE5 variety motor 2009 Shanghai GM Buick LaCrosse two.4 sedan. Consumer report: motor vehicle engine fault lights.

Inspection and evaluation : detection motor regulate device upkeep personnel uncovered fault code P0171- motor torque command exception. Observed launch x431 iv if the engine is idling the air stream meter facts , with the one.eight g / s, and thru the air density is calculated with the data was 2.86 g / s, exceptions. Then observe the amount of long-term fuel trim , located right now has reached 17 %, indicating the air circulation meter measurement error does exist.

Engine output torque is calculated based on air move fee , if your air circulation provided the presence of information error , then the end result is sure to have an effect on the torque . Detecting ZED BULL physique manage device , it absolutely was located the fault code C0241- driving steadiness control process torque response abnormalities. Therefore, to search out the reason for the malfunction , the air movement needs to be comprehensively checked.

Remove the air stream within the main , it was found out in its sensing ingredient accrued a great deal of dust , it can be clear they will have an impact on the procedure in the sensor . This is due to the air circulation is measured with the thermal component to your air movement , as well as component floor of CRP129 the dust may well impact the gasoline flow heat exchange approach.

Troubleshooting: Totally clean the surface area of the thermal ingredient , yet again observing air visitors data , commonly. Check confirmed troubleshooting.