N16: Fault 274D Mixture Adaptation Is Stored in the DME. Certain low speed, light-load driving conditions...

Bulletin number

M120114

Component

Engine and engine cooling: exhaust system

Summary

N16: Fault 274D Mixture Adaptation Is Stored in the DME. Certain low speed, light-load driving conditions at lower outside temperatures could cause the Service Engine Soon lamp (MIL) to illuminate. The following fault would be stored in the DME: Fault 274D: Mixture adaptation, lower engine speed range (mixture too lean) CAUSE 1. Possible intake/exhaust leaks, or a faulty component as listed in the test plan 2. Unfavorable DME software

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