KP1 - Inspect Octane Adjust Inline Connector

Diagnostic Trouble Code (DTC) 341 indicates Octane Adjust (OCT ADJ) shorting bar is not in or the OCT ADJ circuit is open.

- Key "OFF".

- Visually inspect in-line connector.

- Is shorting bar removed?

Yes -- Go to KP2. KP2 - Check For Modification Decal

No -- Go to KP4. KP4 - Check Continuity of Octane Adjust Circuit