did my turbo go bye bye??

almcbs · 08-12-2015, 09:49 PM

Can someone take a look at these partial logs and tell me what you get from them? I didn't see any point going any farther in the logs than i did.

i'm not seeing over 6-7psi, no cel. Not sure if inlet pipes are known for coming off, but i can see that the front one is still on, but i can't tell if the back one is. Any help is greatly appreciated!!

Log.zip

335NJ · 08-12-2015, 10:28 PM

Check all of the connections first, before assuming turbo failure.

Chargepipe connected? Etc.. If you have a JB4, what map is the car CURRENTLY in?

Also, a 30FF will typically pop-up when there's a certain amount of time (2-3 seconds I believe) that boost isn't hitting target. Did this happen suddenly?

almcbs · 08-13-2015, 06:27 AM

Quote:

Originally Posted by 335NJ

Check all of the connections first, before assuming turbo failure.

Chargepipe connected? Etc.. If you have a JB4, what map is the car CURRENTLY in?

Also, a 30FF will typically pop-up when there's a certain amount of time (2-3 seconds I believe) that boost isn't hitting target. Did this happen suddenly?

The only connection I couldn't check was the rear turbo inlet pipe. I plan to do a more thorough look this weekend when I finally get a break. Charge pipe, ic pipe, front TIP were all connected fine.

I believe that one of those logs was on map 5 and the other was on map 2.

The other thing puzzling me is that I am not getting the 30FF. After a while of boost not hitting target, I am getting the engine malfunction reduced power light, but when I check codes nothing is there.

almcbs · 08-13-2015, 06:32 AM

Also worth noting that I just thought of. A few days ago as I was leaving my car started making a loud scraping noise (easiest way I can think to describe it was as if something was stuck between the rotor and pad). I figured it was something with my brakes or bearing as it only made the noise when I was moving. I had the gf slowly move the car so I can try and see what the noise was and where it was coming from, and of course it stopped making the noise shortly after she got in. Nothing dropped or popped out, it just kind of seemed like whatever it was popped back in place.

Not sure if this is directly related to my issue but I figure I would throw it out there in case some one experienced this as well.

MachWon · 08-13-2015, 05:01 PM

Your car will still build boost with the inlet off. You'll just be sucking in dirty air. I believe it's pretty common for the stock rear inlet to be loose/off on these cars. Make sure you don't turn off the car before pulling codes. 30ff should still be there either way, but it never hurts to try.

When did you notice your boost was low?

almcbs · 08-13-2015, 05:58 PM

Quote:

Originally Posted by MachWon

Your car will still build boost with the inlet off. You'll just be sucking in dirty air. I believe it's pretty common for the stock rear inlet to be loose/off on these cars. Make sure you don't turn off the car before pulling codes. 30ff should still be there either way, but it never hurts to try.

When did you notice your boost was low?

I've made the light come on purposely twice so that I could try and pull codes, nothing. Both times I've tried to put the codes before shutting off the car.

I wanna say about a week ago I noticed it felt slower, but confirmed 2 days ago that the boost was low. I noticed about 4 days that if I listen to the engine/exhaust while I'm steadily accelerating (3rd gear, 30%-40% throttle), it feels and sounds like it's pulsing the whole way up the rpm range. Hard to explain this, I might try to stick a go pro under the hood and record it lol

MachWon · 08-14-2015, 12:43 AM

Do a boost leak test first, and if no leaks then check wastegates/wastegate solenoids/vacuum canisters.

If all else fails, make sure your cat converter(s?) isn't clogged. Had that problem on a 1.8t audi and the car would only make 6-7psi instead of 16-17psi.

mirkwo0dforest · 08-20-2015, 02:03 PM

Just a shot in the dark, but I had a similar problem a while ago and i had also heard a weird noise. Turns out the c-clip for the rear WG actuator rod popped off and the arm was just hanging, with that wastegate open all the time it was like a had one turbo. Worth a shot to check. Also, I don't have much XP with the newer JB4, but is you 3rd gear boost limited to 2psi, or is that BAR?

08-12-2015, 09:49 PM	#1
almcbs First Lieutenant 37 Rep 335 Posts Drives: 2009 335i & FD RX7 Join Date: Oct 2014 Location: Alexandria VA iTrader: (1)	did my turbo go bye bye?? Can someone take a look at these partial logs and tell me what you get from them? I didn't see any point going any farther in the logs than i did. i'm not seeing over 6-7psi, no cel. Not sure if inlet pipes are known for coming off, but i can see that the front one is still on, but i can't tell if the back one is. Any help is greatly appreciated!! Log.zip
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08-12-2015, 10:28 PM	#2
335NJ Colonel 533 Rep 2,872 Posts Drives: 2008 335i 6MT E90 Join Date: Feb 2014 Location: NJ/Philadelphia Suburbs iTrader: (1)	Check all of the connections first, before assuming turbo failure. Chargepipe connected? Etc.. If you have a JB4, what map is the car CURRENTLY in? Also, a 30FF will typically pop-up when there's a certain amount of time (2-3 seconds I believe) that boost isn't hitting target. Did this happen suddenly? __________________ *BSM E90 6MT*-JB4 G5 ISO-BMS DCI-Golf-Tee Mod-Hankook S1N2 Non-RFT-ER Chargepipe/TiAL BOV-E40 blend-VRSF V2's-M3 CDV-MHD/JB4 FLASH-VRSF 5" STEPPED FMIC
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08-13-2015, 06:32 AM	#4
almcbs First Lieutenant 37 Rep 335 Posts Drives: 2009 335i & FD RX7 Join Date: Oct 2014 Location: Alexandria VA iTrader: (1)	Also worth noting that I just thought of. A few days ago as I was leaving my car started making a loud scraping noise (easiest way I can think to describe it was as if something was stuck between the rotor and pad). I figured it was something with my brakes or bearing as it only made the noise when I was moving. I had the gf slowly move the car so I can try and see what the noise was and where it was coming from, and of course it stopped making the noise shortly after she got in. Nothing dropped or popped out, it just kind of seemed like whatever it was popped back in place. Not sure if this is directly related to my issue but I figure I would throw it out there in case some one experienced this as well.
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08-13-2015, 05:01 PM	#5
MachWon Private First Class 25 Rep 197 Posts Drives: 2007 335i 6mt. JB4 + CDP's. Join Date: Mar 2015 Location: . iTrader: (0)	Your car will still build boost with the inlet off. You'll just be sucking in dirty air. I believe it's pretty common for the stock rear inlet to be loose/off on these cars. Make sure you don't turn off the car before pulling codes. 30ff should still be there either way, but it never hurts to try. When did you notice your boost was low?
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08-14-2015, 12:43 AM	#7
MachWon Private First Class 25 Rep 197 Posts Drives: 2007 335i 6mt. JB4 + CDP's. Join Date: Mar 2015 Location: . iTrader: (0)	Do a boost leak test first, and if no leaks then check wastegates/wastegate solenoids/vacuum canisters. If all else fails, make sure your cat converter(s?) isn't clogged. Had that problem on a 1.8t audi and the car would only make 6-7psi instead of 16-17psi.
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08-20-2015, 02:03 PM	#8
mirkwo0dforest Enlisted Member 3 Rep 38 Posts Drives: 2007 335i Coupe 6MT Sport/Prem Join Date: Jun 2015 Location: Richmond, Va iTrader: (0)	Just a shot in the dark, but I had a similar problem a while ago and i had also heard a weird noise. Turns out the c-clip for the rear WG actuator rod popped off and the arm was just hanging, with that wastegate open all the time it was like a had one turbo. Worth a shot to check. Also, I don't have much XP with the newer JB4, but is you 3rd gear boost limited to 2psi, or is that BAR?
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