[Bmw doubles]

Anyone deal with a boost leak yet from their tune? I've been noticing a stuttering like effect in WOT in 3-4th gear. Today it was really obvious when the stuttering was accompanied by the vent to atmosphere 3 times through the entire rpm band in 3rd. I'm hoping it's just the DV. I'm getting a CP in the next week or so hoping that will eliminate some of the possibilities.

[ARC550]

I had something similar, by shuddering I had shaking of car and drivetrain malfunction light go on and heavy popping backfire... Scary
Car is in for service... Maybe plugs are bad

[lsturbointeg]

All from that new tune from GSR? Have them check it out?

[Bmw doubles]

I don't think dashCmd app is super accurate, but I don't think it's too far off. According to the boost gauge it's telling me I'm making 19 PSI. It feels more like 12-14, but either way wouldn't that be enough to cause a leak? And even more so with my DV?

In my E90 in map 5 I pushed 18PSI. Stacked with a flash a constant 15PSI, and I never had a diverter valve leak. Some people on the forums did so I guess I was the lucky one. However, the E90 DV went to the CP as where the N55 DV is a weak little component that sits on the turbo.

I will reach out to them GSR Autosport. In the meantime CP and DV has been ordered.

[lsturbointeg]

Originally Posted by Bmw doubles

I don't think dashCmd app is super accurate, but I don't think it's too far off. According to the boost gauge it's telling me I'm making 19 PSI. It feels more like 12-14, but either way wouldn't that be enough to cause a leak? And even more so with my DV?

In my E90 in map 5 I pushed 18PSI. Stacked with a flash a constant 15PSI, and I never had a diverter valve leak. Some people on the forums did so I guess I was the lucky one. However, the E90 DV went to the CP as where the N55 DV is a weak little component that sits on the turbo.

I will reach out to them GSR Autosport. In the meantime CP and DV has been ordered.

DL app... what did u put for displacement?

[Bmw doubles]

Originally Posted by lsturbointeg

DL app... what did u put for displacement?

3.0 I

[FSociety]

Bmw doubles
Use TorquePro bro much more accurate thats why I stopped using Dash Command as well.
PM ME I'll get u the app to your email, I have both on my dropbox

[GSR Technik]

Originally Posted by Bmw doubles

I don't think dashCmd app is super accurate, but I don't think it's too far off. According to the boost gauge it's telling me I'm making 19 PSI. It feels more like 12-14, but either way wouldn't that be enough to cause a leak? And even more so with my DV?

In my E90 in map 5 I pushed 18PSI. Stacked with a flash a constant 15PSI, and I never had a diverter valve leak. Some people on the forums did so I guess I was the lucky one. However, the E90 DV went to the CP as where the N55 DV is a weak little component that sits on the turbo.

I will reach out to them GSR Autosport. In the meantime CP and DV has been ordered.

Hey man, got your message. not a stretch given the power we are getting out of your car. We can discuss offline.

[N55shack]

Originally Posted by ARC550

I had something similar, by shuddering I had shaking of car and drivetrain malfunction light go on and heavy popping backfire... Scary
Car is in for service... Maybe plugs are bad

I know you posted this a while back but I'm having the exact same issues, what ended up being the fix? Did the spark plugs do the trick or was it a boost leak?

[Dtex535]

Originally Posted by ARC550

I had something similar, by shuddering I had shaking of car and drivetrain malfunction light go on and heavy popping backfire... Scary
Car is in for service... Maybe plugs are bad

I know this is an old post but I recently been having the same problem after installing my mst intake, Ftp boost/intake pipes and Gplus IC. Not getting any codes so I don’t think it’s a misfire… could it be a boost leak?? Did you guys ever figure out what was wrong? Thanks!