What is the long-term fuel trim data for the Cruze?
1 Answers
The normal value for the long-term fuel trim data of the Cruze is generally around 10%. Below is a related introduction: 1. Overview: Long-term fuel trim is an adaptive learning process performed by the electronic control unit based on the engine's long-term operating conditions. When the short-term fuel trim adjustment does not fluctuate around 0 but instead adjusts in a single direction (continuously enriching or leaning), and the value exceeds 3% or -3% (the threshold may vary by vehicle model) for a certain period, the electronic control unit determines that there is a systematic deviation in the fuel injection control system. 2. Function: The fuel trim data, to some extent, reflects the working condition of various systems affecting the air-fuel mixture concentration. Therefore, considering fuel trim factors is essential when diagnosing engine faults.