Isuzu Turquoise is a coach fitted with the ISUZU 4HK1 engine, which features a DPF particle filter.

The emulator simulates a fully-functional diesel particulate filter so that the vehicle does not continuously regenerate the filter.

The indicator "DPD" on the dashboard is responsible for the exhaust aftertreatment system - more specifically for the DPF particulate filter

After repair, the exhaust system does not report any errors.

Below are pictures of the installation of the DPF emulator

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