robert whiteside said:

Hello members. I've been having a hell of a time trying to find the cause of black smoke coming from my 08 fl2. (high mileage ) It started hesitating when I gunned the engine & it got steadily worse but also started smoking (black). When we disconnected the mass sensor plug it ran ok but without much power. We blocked off egr valve but no different. Checked the usual ie turbo pipes etc but couldn't find any holes or splits. Checked air filters etc, I've been driving without air mass plug connected & it's smoking when I gun engine & the engine power is getting weaker. I fitted new mass flow meter but still same. Throttle plate not sticking either so really stumped now. Have I missed something ? Any advice appreciated.

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BB8FAN said:

Hi there, blocking off the egr will increase the black smoke considerably. It sounds like it may need removed and decoked then re connected - your injectors will be the next thing to check. Good luck.

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