V6 MAF failed again! - Alfa Romeo Forum
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V6 MAF failed again!

When I got the V6 the MAF was dodgy (red light on) so I replaced it with a second hand Bosch one that I knew was good. Three months later. Same problem again only worse. This time I had to unplug the MAF or it wouldn't start. The previous owner had replaced the MAF but I am not sure how long it lasted.

The V6 came with an induction kit which looks good quality but bizarrely it has been fitted so it sits in the housing for the old air filter.

I don't know much about after market induction kits (as I suspect they do nothing but add induction noise and usually take warm air from the engine bay rather than nice cold air from outside) but is this likely to be what is killing the MAF?

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Over oiled filters will kill the MAF.
Plus you have no idea how close to failing your "new" second-hand MAF was.
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Originally Posted by David C View Post
Plus you have no idea how close to failing your "new" second-hand MAF was.

It doesn't really matter where you place the filter as it's the increased air flow that matters, even sucking hot air hasn't seemed to bother a few that I've bought with them already fitted directly behind the radiator. I know the theory but in practice......

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Stick with stock air filter. Most test have shown there's no improvement unless you've gone for other serious engine mods/remap.
Other thing could be crankcase oil/vapor trickling back down induction tubing, especially if system is blocked.
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I have once bought a new Bosch MAF for my V6 166. It lasted 3 months... I gave the 166 a blast on the motorway and the engine light came on. Didn't even think it could be the MAF. Then I tried to return it and Bosch would not accept it claiming it suffered mechanical damage(!?!!!???). Standard intake btw.
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