So i was driving my car home from work today and didnt hear anything out of the norm or anything until i gave my car some gas and let off i got a turbo flutter and my car wont spool up past 5-7psi...

I have GMS1, catless dp, cai, and hotside ic piping. I didnt notice any loose or split fittings on my hotside ic piping.

theres NO codes and it runs perfectly minus when i get on it. when i get on it its like driving a Geo.

is this limp mode? i wouldnt think l would hear turbo flutter if its in limp mode and i would think there would be a code.

im thinking boost leak? i cant hear it flutter while sitting in my parking lot.

 

Check your cold side piping I had mine split at the seam after I installed my injen hot side piping or your intercooler.

 

Sounds like the sensors connectors from the stage kit are messing up... did u get it done recently?

 

i was thinking ic end tanks or possibly coldside but i didnt check my coldside yet its raining.

i have had the gms1 for about a year now

 

i couldnt see any noticeable splits in the coldside, how do i go about trouble shooting this out? throw some soapy water on the piping and go for a spin and open the hood after i try and get some boost?

 

bump

 

so im planning on getting a boost leak tester and see if there are any leaks. i am just confused about the flutter. could the internal bov be bad or stuck open? i only have 20k miles. could the leak be causing the flutter because it cant build enough psi to open the internal bov so it causes the cavitation?

 

Try checking the sensor on the cold pipe. I had similar problems like you have and couldn't figure out the problem. Was going to take it in to the dealership to have them see it and maybe fix it, but before I did I decided to check the all the sensors... turned out that the cold side sensor was loose to the point to where I barely touched it and it came off. Plugged it in and made sure it was secured on there tight and the problem went away!!!

 

i checked the sensor looked like it was in there good. you dont think that flutter is a sign that something on the turbo is bad?

 

take out both senors and clean them with an air gun on low or some maf cleaner.....u just got some oil on them it happens to me every now and then...we need a chatch can

 

I hope that's it... Thanks I'll try that

 

Start with the TMAP and MAP (check wiring harness connections, sensors themselves, etc) then work your way up to testing for boost leaks. Also, try some third gear pulls and see if any CELs set....if you happened to have issues with your BPV or vacuum tank it doesn't tend to set until a 3rd gear pull and being type b needs multiple instances of it. If it's none of those you could be in the same boat as me (and I'm convinced others on this forum that seem to have the same issue cropping up repeatedly) but hopefully that's not the case .

 

I will try that as soon as I get home and I will fill everyone in as I narrow this down

 

I always come into flutter threads thinking "i bet he has a GMS1".

Still to this day i cannot get my brother to have the wires soldered. He is cheap and it will end up costing him more. ;/ Sorry for my rant, moving on.

 

Problem solved! thank you beast10007! it looked to be the upper (manifold) MAP sensor. it had a bit of oil on it and sprayed it down with some MAF cleaner as well as the coldside MAP sensor. i went both routes... I made my makeshift GHETTO boost leak detector. and cleaned the sensors.

i took a few pics of my quick fix boost pressure leak tester. i made it able to hook up to the stock inflator kit our car came with and put a quick disconnect on the end for an easier install. I used a 2" PVC end cap, a 2" PVC ball joint that i took apart, autozone 3" intake hose with a 2.5" rubber insert reducer, an airhose connection, pressure gauge (that didnt work) with a valve to close the connection, 1/4" threaded into a 1/8" hose end, a silicone hose, a valve stem end with a tappered end to attach to a hose, a **** ton of epoxy, and plasti dip to cover up everything.

it worked! the inflator kit read 15psi and i disconnected it after shutting off the valve and didnt hear any significant leaks and then let the air out and there was a good amount of PSI coming out so incase the inflator kit was reading incorrectly i still had some psi. and it all works fine now so thanks everyone! here are some pics...

 

and you shouldnt need to solder anything if you put weather proof shrink sleeves on the crimps for the map sensors...

 

yea glad that fixed it......now this will happen again so be ready lol or get a chatch can

 

I felt the inside of the ic piping and I didn't feel any sludge or film. So it's coming from the PCV into the intake and the turbo is suckin that out and pushing it to the MAP sensors? Or is the turbo just spitting a little oil? I guess i can make a custom catch can, like someone here has like a mountain dew catch can. That would be pretty sick. I have to get like a code red can haha