Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
- The system is designed for use of regular unleaded fuel to any ethanol concentration up to 85 percent (E85).
- When the ambient temperature drops below -10°C (+14°F), a winter blend of 70 percent (E70), or less is recommended for cold weather starting.
- The use of methanol fuels may set this DTC.
- Use of methanol fuel or high concentration of ethanol may cause DTCs P0169 and P0179 to set.
- Other contamination such as water and salts may cause this DTC to set.
The table below shows the maximum thresholds of a given ethanol content (percentage) versus the ambient temperature at which a DTC P0169 will set.
Ethanol Content Vs. Ambient Temperature
| Temperature | Ethanol Content | Frequency Hz |
|---|---|---|
| -40°C (-40°F) and colder | 55% | 105 Hz |
| From -30 to -10°C (-22 to + 14°F) | 76% | 126 Hz |
| -5°C (+23°F) | 81% | 131 Hz |
| 0°C (32°F) and warmer | 88% | 138 Hz |