Version 5 STi MAF Sensors
 

Whats the crack with the version 5 STi's MAF sensor... I've just bought one and have been reading that these need replacing every so often to avoid problems?

True/False? Is the SIMTEK ECU the only way forward to run MAF'less or can it be achieved on the ECUTEK.

The car has been ECUTEK remapped and is pretty much standard except decat downpipe, a version 8 TMIC and 1.3bar boost limit

If it's a new one, it should be okay.

Is it the later, more robust "green stripe/post 2006" manufactured one? Is there a green painted stripe on it? What's the code on it (white stenciled lettering)?

Simtek isn't the only MAFless ECU replacement, but it is the cheapest for a MY99/00 car.

EcuTek can't run MAFless. If it can, then it's news to me! :D

Cheers mate... not with the car so will check later. But if its not, which colour label is standard? And if it is standard, are these a weak link?

... side question, which turbo should be standard on the MY99 V5 STi?

VF28

Banny you've PM about them lights

+1

IHI VF28 - good for up to c.330bhp when remapped. (The std 440cc injectors will be near to their limit as well).

... and what colour label is on the standard MAF on the version 5 STi?

IIRC, it's green(?)

Forgotten TBH. :wonder:

No bother... i'll check what i've got and reply if required. Cheers lads :thumb:

The green 'stripe' (or 'dot' if it's pre-2006) + that code will be enough to tell anyway. :thumb:

Can wire in new age denso maf. but will need mapping.

Not really wanting to faff on too much.

If the MAF is standard for the car, what is the problem with them? Are they just fragile? And how often do they need replacing?

They only need replacing when the car tells you so, or when it is running rough or throwing up a cel,not like engine oil every 6 months ,etc.I have had mine on the car for 18 months & no problems on my MY00 or my MY99 car previous.They can tend to play up more when fitted to an induction kit opposed to the std airbox,which allows a smooth passage of air across the sensor.A std 99/00 maf sensor should have the no's GF700R92 stamped on one side & 7829 on the other,with a green stripe where the securing nut holds the sensor to the tubing.