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GIAC (MAF) Tuning problems....

ashleyisagirlsname
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ashleyisagirlsname Member

ashleyisagirlsname

Posted
Posted

Hey all....

When I purchased my 2000 986 S, it came with an Evolution Air Intake and GIAC tuning installed at PFAFF Porsche in Toronto. Over the last year, my mass airflow sensor failed (surprise, surprise) and I had to install the new 'upgraded' sensor (989-606-125-01). In order for the car to accept this sensor I had to have the DME reprogrammed by my local Porsche dealer. Since the reprogramming essentially erased my upgraded tuning, and restored the car to factory, I decided to contact my local tuner to see about getting my car 'chipped' again. GIAC will let you upload the software again for free (since it was almost $1000) but my local tuner does charge an hour or two labor for this service. That was fine with me, but now my local tuner is saying GIAC doesn't have software that is compatible with my upgraded (new) DME. I tried contacting GIAC directly several times but no one will respond. Talk about bad customer service. Can anybody shed any light on anything?

Feeling factory in Calgary,

Ashley

clubhead Member

clubhead

Posted
Posted

Although you've recalibrated your DME to take the new MAF, there's no reason why GIAC does not have a program for it. The recalibration far as I know is just to tell the DME to read the voltage from the MAF or something similar. My local dealer told me this 'recalibration' will also load the latest fuel/ignition map into the DME but I'm not sure. I've had mine done about 1.5 years ago.

The latter model MAF was used on the latter model cars. If GIAC does not have a program for it, does it mean they've no program for cars that comes from factory fitted with the new MAF? I doubt that.

Did you try calling them? Most of these companies are flooded with emails everyday and I will call them if my email goes unanswered.

Good luck with this!

Stefan Member

Stefan

Posted
Posted

The DME "upgrade" (really a software change to correctly interpret the different values coming from the MAF) should not affect ignition timing, which I believe is all the GIAC is doing. So you should be able to get a free GIAC remap.

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