What a pisser...stood on the car in third gear and lights, bells, whistles, into limp mode with PSM/ABS lights. My car has <10K miles, has aftermarket exhaust, ECU, Forge DV's, silicone hoses and a properly maintained K&N drop in. The replacement up here in Canada was $600!!!

My mechanic told me it had nothing to do with the car setup, it's just that the Porsche MAF's are lousy. Any advice here - is there a better MAF that is simply a direct replacment? Or do I need to stock up on MAF's? I'm planning on going stage 2 UMW..will this be more of an issue with those additional mods?

 

If you are planning on going with UMW Stage IIs, I believe Kevin provides you with another maf that he has custom fabricated that works with his setup. You should give Kevin at UMW a call.

 

Wow..that is arip off...can't you buy them cheaper?...About $250 at:
MAF

Kevin will take care of you...I have had no problems since removal of the V-flow...

 

You're right I got hosed on the price. Thanks for the info.

 

what ECU are you running....

 

Gembella ECU

 

did the temps change today by a big margin?

 

YES they did??? - what are you getting at, Jeddi master

 

Even though you say your K & N is properly maintained, the oil type filters are known to damage the MAFs. I would lose the K&N and get something "dry".

 

Really don't want to start another argument, but anyone that says they know what causes this definatively is OTL. There is not one thing that has been "proven" to cause MAF failures. It is likely an interaction of several causal factors...but to say it is due to oil on the filter...not known (everything I've seen is correlation at best). In fact, there was a study with data posted by K&N about effects of oil on MAFs..which was notta (I suppose this also could be biased). My point is nothing is a known. FWIW.

 

I happen to know a little more about this then post... thank God my tuner has it figured out.
How long On the chipped ECU?

 

I bought the car 2 months ago with the Gembella ECU. I've swapped it a few times since then with the stock ECU, but it's been in for the last 6 weeks. Don't know how long that PO had it in the car.

Thanks

 

So you have two ECU's???
did it get colder today or did it get hotter?
Its probably the ECU coding...

 

Yep I have 2 ECU's, factory and the Gembella. Factory is only used for emissions testing

It dropped from 80 degrees to 50 degrees today

 

Oil will not typically cause catastrophic MAF failure- oil will foul the mafs, leading to distorted AFRs and then a CEL eventually. The sudden death of a maf is over-ranging or perhaps spiking due to wacky flow. Two distinctive failure modes. A