Volkswagen Workshop Service and Repair Manuals > Polo Mk4 > Engine | 4 - Cyl. injection engine | Mixture preparation system, electronic inj.,Gas | Engine control unit J623 | Engine control unit J623 - remove and install

Installation

–	Position the Engine control unit -J623-, and press it.

–	Connect and lock the connectors.

–	Adjust the Engine control unit -J623- → Chapter.

–	Finally, refer to the fault memory of the new Engine control unit -J623-and, if necessary, erase the fault memory → Chapter.

–	Perform a test drive.

–	Check the fault memory in the Engine control unit -J623-again.

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