I have been trying to figure this out for awhile. It happens once every couple of weeks. The car will sputter at the top of 2nd and 3rd.

A little more on the car. Plugs and coils have about 7,000 miles on them. MAF is brand new. If I unplug the MAF it will NOT happen. I am convinced it is pinched wire somewhere, but that seems sort of fare fetched. There are not any codes. What do you guys think?

 

if you disconnect the maf and it doesn't do it then you probably have maf issues...
its tuned? what boost are you running

 

The car has an older GIAC Tune running 1 - 1.1 bar.

 

you might want to see if they can update that... Ive seen this before...
not pointing fingers just saying....

 

Haha. Do you think I should Contact GIAC? Or abandon it all together? My end goal is to upgrade the Turbos and retune it anyways, but I have not had time to do the work. If only Chicago was a little closer

 

I cant answer that question for you....
if you have a durametric cable you should log the car...

 

I need to get my hands on a cable.

 

How long ago was the car flashed? We can update it, but I don't know that it will be your remedy. It would be valuable to see what the MAF readings and voltages are to verify that the MAF is functioning properly.

 

The flash was done around 06-07 (prior to my ownership).

I just took the car for a spin, and same issue. Sputters with the MAF plugged in and pulls hard with it unplugged. It was doing this on the old MAF, so I replaced it with a brand new OEM MAF and it has not changed. Super weird.

How much would updated software run? Do you have a MAFLESS tune??

Thanks!

 

There isn't a charge for software updates when keeping your stage and options the same. Has the car been pressure tested? Has it always done this since you've owned the car, or is it a recent occurrence?

We do Hitachi MAF conversions which are a better option than full MAF-less.

 

If you have no boost leak then you have a leak between the MAF and the inlet of the turbo.

 

It does not seem that there is a boost leak. Still hitting 1bar with the MAF unplugged. I have had the car for the past three years. It has only started doing this on and off for the past few months.

How would one update there software?

 

Looks like I need to spend more time going through the car. Where would recommend starting on my search?

 

i had to go to a giac vendor and get the flash. cost me 75$


from the intake piping down the back of the motor to the turbos is were i think tim was talking about. major biatch to deal with

 

May be going to shop then haha. I will see what I can do this weekend. Unfortunately, my time is limited.