Review Of Xc90 Check Engine Light References. Found leakage coming from supercharger seals, found that the o2 sensors reading erractic and could be fouled from lean condition. After getting a response from volvo, they went and replaced the evaporator canister valve.
If you have a flashing check engine light, turn off the engine immediately to prevent potential motor damage. Web flashing check engine light: In some vehicles, the light comes in two colors:
