What does it mean when 4lo flashes and the engine light is on simultaneously?

[LaAugust]

4lo flashing and the engine light being on simultaneously indicates a fault in the engine. Here are the relevant details: 1. Engine misfire: A misfire in the engine leads to excessive exhaust temperature. 2. Individual cylinder issue: An individual cylinder in the engine stops working. 3. Air-fuel mixture problem: The engine's air-fuel mixture is too rich, causing poor combustion. This requires decoding to read the fault code and analyze the cause based on the fault code. The issue might be related to the transfer case's electronic control system. The specific problem should be analyzed according to the fault code, followed by detailed repairs. For the electronic control system, blind replacement should be avoided; a thorough inspection is necessary.