No Boost, No Codes

xxe90335ixx · 08-07-2017, 07:24 PM

Recently my car started doing something really weird. So basically I'll start it up, take off, and then shortly into my drive I will realize that I have no to very little boost. The car drives fine and smooth but there is no boost. I get no codes, no check engine lights, nothing. I can hear the turbo spool up (I have the BMS intake) but the car drives like an NA engine (feels like a 325i), doesn't shudder, shake, idle hunt or anything like that. It literally drives perfectly but feels like an NA car as mentioned above (man do those turbos make a huge difference). The way I get it to work again is I pull over, turn the car off and back on, and all is good to go. I'm not sure if its tune related as it has happened on MHD and Cobb. I have some shadow codes for my fuel pump (guess its on its way out, codes are 2BEE, 2C01, 2BF0). Anyone know whats could be going on? AFAIK, I have no boost leaks. Could this related to the weak HPFP?

Thanks in advance.

velociti · 08-07-2017, 08:40 PM

Obligatory "log it" response.

I had almost identical symptoms on my car with both a JB4 and with MHD. Turned out to be a tired boost solenoid. Less than $100 (took a punt on an N54 one -- Pierburg -- and it's worked perfectly), install's straightforward, and my car's been running great ever since.

Diox · 08-07-2017, 08:43 PM

I had the same issue after getting my ps2 in place.. I was so disappointed lol.

+1 for the boost solenoid, replaced it and I flew again

xxe90335ixx · 08-07-2017, 09:02 PM

Quote:

Originally Posted by velociti

Obligatory "log it" response.

I had almost identical symptoms on my car with both a JB4 and with MHD. Turned out to be a tired boost solenoid. Less than $100 (took a punt on an N54 one -- Pierburg -- and it's worked perfectly), install's straightforward, and my car's been running great ever since.

Yeah, I agree, logs would be helpful. The times it has happened I'm on my way somewhere and haven't thought about logging, my reaction was to pull over and restart the car.

Thanks for the info on the boost solenoid, definitely going to look into that. Are you aware of a DIY for this? Mind sharing part number if you don't mind?

Thanks for the help!

velociti · 08-07-2017, 09:36 PM

Genuine BMW part: https://www.ecstuning.com/b-genuine-...SABEgJB7fD_BwE

What I bought (and have had zero issues with): https://www.ecstuning.com/b-pierburg...747626350~hla/

No DIY that I'm aware of, but check this thread: http://www.1addicts.com/forums/showthread.php?t=1357439

You'll just want to take the intake off to get a little room to work. Look straight down after you do from the passenger side of the engine bay and you'll see this. The two 10mm are a pain, but getting the vacuum hoses off are really tough. Pretty straightforward, though. I was boosting no more than 6psi up until I replaced it, and immediately hit over 20psi once I was done (was doing a custom tune with Ken).

xxe90335ixx · 08-07-2017, 10:13 PM

Quote:

Originally Posted by velociti

Genuine BMW part: https://www.ecstuning.com/b-genuine-...SABEgJB7fD_BwE

What I bought (and have had zero issues with): https://www.ecstuning.com/b-pierburg...747626350~hla/

No DIY that I'm aware of, but check this thread: http://www.1addicts.com/forums/showthread.php?t=1357439

You'll just want to take the intake off to get a little room to work. Look straight down after you do from the passenger side of the engine bay and you'll see this. The two 10mm are a pain, but getting the vacuum hoses off are really tough. Pretty straightforward, though. I was boosting no more than 6psi up until I replaced it, and immediately hit over 20psi once I was done (was doing a custom tune with Ken).

Much appreciated.

Thanks!

trevorwelshh · 03-17-2020, 12:27 PM

Quote:

Originally Posted by xxe90335ixx

Quote:

Originally Posted by velociti

Genuine BMW part: https://www.ecstuning.com/b-genuine-...SABEgJB7fD_BwE

What I bought (and have had zero issues with): https://www.ecstuning.com/b-pierburg...747626350~hla/

No DIY that I'm aware of, but check this thread: http://www.1addicts.com/forums/showthread.php?t=1357439

You'll just want to take the intake off to get a little room to work. Look straight down after you do from the passenger side of the engine bay and you'll see this. The two 10mm are a pain, but getting the vacuum hoses off are really tough. Pretty straightforward, though. I was boosting no more than 6psi up until I replaced it, and immediately hit over 20psi once I was done (was doing a custom tune with Ken).

Much appreciated.

Thanks!

I am having this issue as well. It's not my charge pipe or any sort of leak because the amount it leaks changes everytime. I bought a GFB DV+ and had it installed. The shop said i also need an entirely new DV (GFB is only internals/part of it). I'm still having the same issue! Please help me figure this out! The only thing i can think of next is boost solenoid...I have mhd stage 1 on the car. (e92 n55)

anjuna · 03-18-2020, 10:00 AM

Please post a log, even without the issue there.

Just drive and log for like 10 minutes. Just drive as you would without the logging on.

08-07-2017, 07:24 PM	#1
xxe90335ixx Private 11 Rep 52 Posts Drives: 2011 335i E90 Join Date: Apr 2016 Location: Florida iTrader: (0)	No Boost, No Codes Recently my car started doing something really weird. So basically I'll start it up, take off, and then shortly into my drive I will realize that I have no to very little boost. The car drives fine and smooth but there is no boost. I get no codes, no check engine lights, nothing. I can hear the turbo spool up (I have the BMS intake) but the car drives like an NA engine (feels like a 325i), doesn't shudder, shake, idle hunt or anything like that. It literally drives perfectly but feels like an NA car as mentioned above (man do those turbos make a huge difference). The way I get it to work again is I pull over, turn the car off and back on, and all is good to go. I'm not sure if its tune related as it has happened on MHD and Cobb. I have some shadow codes for my fuel pump (guess its on its way out, codes are 2BEE, 2C01, 2BF0). Anyone know whats could be going on? AFAIK, I have no boost leaks. Could this related to the weak HPFP? Thanks in advance. __________________ 2011 335i Sedan \| Jet Black \| Chestnut Brown Interior \| BBS Wheels \| Cobb CP \| Cobb High Flow DP \| Cobb Exhaust \| VRSF 7" FMIC \| BMS High Flow Intake \| BMS OCC \| MHD Stage 2+ \| xHP Stage 3
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08-07-2017, 08:40 PM	#2
velociti First Lieutenant 182 Rep 322 Posts Drives: 2009 E90 M3 Join Date: Jun 2013 Location: PA iTrader: (1)	Obligatory "log it" response. I had almost identical symptoms on my car with both a JB4 and with MHD. Turned out to be a tired boost solenoid. Less than $100 (took a punt on an N54 one -- Pierburg -- and it's worked perfectly), install's straightforward, and my car's been running great ever since.
	Appreciate 1 xxe90335ixx11.00 Quote

08-07-2017, 08:43 PM	#3
Diox Private First Class 24 Rep 122 Posts Drives: 335i xDrive 2011 6MT Join Date: Aug 2016 Location: 11414 iTrader: (0)	I had the same issue after getting my ps2 in place.. I was so disappointed lol. +1 for the boost solenoid, replaced it and I flew again
	Appreciate 1 xxe90335ixx11.00 Quote

08-07-2017, 09:36 PM	#5
velociti First Lieutenant 182 Rep 322 Posts Drives: 2009 E90 M3 Join Date: Jun 2013 Location: PA iTrader: (1)	Genuine BMW part: https://www.ecstuning.com/b-genuine-...SABEgJB7fD_BwE What I bought (and have had zero issues with): https://www.ecstuning.com/b-pierburg...747626350~hla/ No DIY that I'm aware of, but check this thread: http://www.1addicts.com/forums/showthread.php?t=1357439 You'll just want to take the intake off to get a little room to work. Look straight down after you do from the passenger side of the engine bay and you'll see this. The two 10mm are a pain, but getting the vacuum hoses off are really tough. Pretty straightforward, though. I was boosting no more than 6psi up until I replaced it, and immediately hit over 20psi once I was done (was doing a custom tune with Ken).
	Appreciate 1 xxe90335ixx11.00 Quote

03-18-2020, 10:00 AM	#8
anjuna First Lieutenant 307 Rep 394 Posts Drives: f25 Join Date: Feb 2017 Location: houston iTrader: (0)	Please post a log, even without the issue there. Just drive and log for like 10 minutes. Just drive as you would without the logging on.
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