Additive Adaptation: Diagnostics
- When the additive value reaches +4 mg fuel/combustion, diagnostic trouble code P1181 will be generated.
The most probable causes are:
- Air leak after the throttle.
- Low fuel pressure.
- When the additive value reaches -4 mg fuel/combustion, diagnostic trouble code P1182 will be generated.
The most probable causes are:
- Purge valve stuck open.
- Air leak before the throttle.