BUICK, CHEVROLET, GMC, SAAB

PIP3711B

2015-09-14 · NHTSA 10127189

車型關聯可作查閱線索；引擎、生產範圍與軟體條件請核對原廠資料。

原廠摘要

以下為英文原文

This Preliminary Information communication provides information to the technician of a possible service engine soon light. Technician will find a diagnostic trouble code P0171 with no engine performance concerns. This could be caused by unmetered air entering the engine due to an intake leak or air filter concern. If Service Information diagnostics doesn?t isolate the cause of this concern inspect the air intake system for rolled connections cracks or loose clamps between the mass air flow sensor and the throttle body, repair as necessary. Inspect the screen that is on the inlet side of the air outlet duct for damage. If the long term trim is consistently above 10 percent temporarily remove the air filter and reset the fuel trims. Evaluate the long term fuel trim if it remains at 0 percent with the air filter removed replace the air filter with the latest part number listed in the parts catalog.

僅在原廠、通報編號、發布日期和完整摘要一致時，才合併重複登錄，並保留原始編號。舊資料仍可查閱；確認明確取代關係後才標示後續版本。1994 年以前的車輛關聯與預設結果分開顯示；未註明年式不等於所有年式適用。