Additive adaptation: Diagnostics
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- When the additive value reaches +3.33 mg fuel/combustion diagnostic trouble code P1181 is generated.
The most probable causes are:
- Air leak after the throttle.
- Low fuel pressure.
- When the additive value reaches -3.33 mg fuel/combustion diagnostic trouble code P1182 is generated.
The most probable causes are:
- Purge valve stuck open.
- Air leak before the throttle.