Skoda Workshop Service and Repair Manuals > Octavia Mk1 > Drive unit | 2.0 ltr./85 kW Engine, Fuel Injection and Ignition System | Self diagnosis, V.A.G Inspection Service | Self-diagnosis V | Reading measured value blocks, display groups 000 to 029 | Analysis of display group 001, display field 3 - lambda controller upstream of catalytic converter

Analysis of display group 001, display field 3 - lambda controller upstream of catalytic converter

Display -V.A.G 1552 -

Rectifying fault

Signal outside tolerance

–	Wait 30 seconds until readout has stabilised.

–	Inspect intake system for leaks.

–	Testing injection valves → Chapter.

–	Test lambda initialisation values in display group 032 → Chapter.