p30ff Help!

Real Nice Guy · 09-02-2015, 04:55 PM

Hey guys, my car is throwing a p30ff code and is not building boost...
Everything was fine after a long drive but later that night I started it up again and had no power...

Currently running Cobb stage 2 with downpipes and chargepipe.

While looking around I found the front inlet pipe had come off from the turbo housing... I shoved it back on, and it predictably had no effect on my problem.

I started by replacing the vacuum hoses related to the turbos, boost solenoids, and vac canisters with no luck.
Then I moved on to replacing both boost solenoids because I noticed the rear wastegate actuator doesn't move when the car starts. No change with the new hardware :/

Video Here v
http://s303.photobucket.com/user/ang...u5m5u.mp4.html

I am confident there is no boost leak on the charge side but rather a problem on the vacuum side or something related to the wategates.

2nd Gear Data Log Here v
http://www.datazap.me/u/realniceguy/...=0&data=3-4-14

Any help is appreciated!

Real Nice Guy · 09-02-2015, 09:16 PM

After searching more, I tried exercising the rear wastegates and believe the arm is binding/sticking.

Don't know where to go from here...

chiefsotos · 09-03-2015, 04:26 AM

my rear wastegate doesn't move at all as yours, on idle and pressing the throttle while the car is stationary. I also having problems with boost, while driving and wonder if the wastegate is stuck ori is it just normal to not moving on idle

yawn · 09-03-2015, 07:04 AM

If you are physically attempting to move the wastegates and they are not moving (ie binding), sounds like you need new turbos. You could always try greasing up the arms first though.

chiefsotos · 09-03-2015, 08:13 AM

when i try phisically to move it, i can. But i thought whith the car in neutral and presing the throttle, that they should move also.

alexg212 · 09-03-2015, 08:38 AM

Could also be wastegate control solenoid. Sometimes my wastegates would get stuck open, and it wasn't the actual wastegates. Just the control solenoid.

fredcase · 09-03-2015, 09:45 AM

wastegate actuator could be busted also. Easy inexpensive fix to try before writing off the turbos.

Real Nice Guy · 09-03-2015, 02:32 PM

I can manually move the wastegate with no problems, BUT there is a good amount of play where the c-clip hold the actuator rod to the wastegate arm. If I don't push the arm just right the assemble moves a lil and can bind.

Already tried replacing both solenoids. No luck there

Could something as simple as a new c-clip hold the assemble tighter and keep it from binding?

Really don't want to replace a turbo

Real Nice Guy · 09-03-2015, 06:57 PM

Hmmmmm well I created a solution. Car is back to normal and running smoothly.

I used my compressor to send around 25 psi into the vacuum lines related to the wastegate system, heard what sounded like a metal on metal bang and now my actuator rod moves freely when I start the car....

No idea what actually happened but thought I would share my experience.

1nityrider · 09-03-2015, 08:54 PM

Quote:

Originally Posted by Real Nice Guy

Hmmmmm well I created a solution. Car is back to normal and running smoothly.

I used my compressor to send around 25 psi into the vacuum lines related to the wastegate system, heard what sounded like a metal on metal bang and now my actuator rod moves freely when I start the car....

No idea what actually happened but thought I would share my experience.

Do you still hear the rattling? Mine rattles, no code seems to build boost and drive fine. I'm just annoyed or the rattling.

Real Nice Guy · 09-03-2015, 10:19 PM

Quote:

Originally Posted by 1nityrider

Do you still hear the rattling? Mine rattles, no code seems to build boost and drive fine. I'm just annoyed or the rattling.

Yes but not as bad on startup. My car always rattled after the install of downpipes

mirkwo0dforest · 09-14-2015, 11:45 AM

Quote:

Originally Posted by Real Nice Guy

Hmmmmm well I created a solution. Car is back to normal and running smoothly.

I used my compressor to send around 25 psi into the vacuum lines related to the wastegate system, heard what sounded like a metal on metal bang and now my actuator rod moves freely when I start the car....

No idea what actually happened but thought I would share my experience.

Damn I need to try this. I feel like my front wastegate is stuck/not moving correctly. Maybe I can give a good jostle with some forced air. Beats pulling the DPs off and inspecting. Which is why I just asked for a few days off from work. Freggin car. I still love it though.

N44183 · 10-03-2015, 10:51 AM

Boost solenoid? Tested mine (vac pump on nipple that goes to canister) and vacuum bled down consistently. Are they bad?

09-02-2015, 04:55 PM	#1
Real Nice Guy . 31 Rep 370 Posts Drives: 2008 e90 M3 Join Date: Nov 2013 Location: NJ iTrader: (4)	p30ff Help! Hey guys, my car is throwing a p30ff code and is not building boost... Everything was fine after a long drive but later that night I started it up again and had no power... Currently running Cobb stage 2 with downpipes and chargepipe. While looking around I found the front inlet pipe had come off from the turbo housing... I shoved it back on, and it predictably had no effect on my problem. I started by replacing the vacuum hoses related to the turbos, boost solenoids, and vac canisters with no luck. Then I moved on to replacing both boost solenoids because I noticed the rear wastegate actuator doesn't move when the car starts. No change with the new hardware :/ Video Here v http://s303.photobucket.com/user/ang...u5m5u.mp4.html I am confident there is no boost leak on the charge side but rather a problem on the vacuum side or something related to the wategates. 2nd Gear Data Log Here v http://www.datazap.me/u/realniceguy/...=0&data=3-4-14 Any help is appreciated!
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09-02-2015, 09:16 PM	#2
Real Nice Guy . 31 Rep 370 Posts Drives: 2008 e90 M3 Join Date: Nov 2013 Location: NJ iTrader: (4)	After searching more, I tried exercising the rear wastegates and believe the arm is binding/sticking. Don't know where to go from here...
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09-03-2015, 04:26 AM	#3
chiefsotos Second Lieutenant 41 Rep 298 Posts Drives: BMW 335 E93 Join Date: Jul 2008 Location: Greece iTrader: (0)	my rear wastegate doesn't move at all as yours, on idle and pressing the throttle while the car is stationary. I also having problems with boost, while driving and wonder if the wastegate is stuck ori is it just normal to not moving on idle
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09-03-2015, 07:04 AM	#4
yawn Lieutenant 57 Rep 552 Posts Drives: M2 Competition Join Date: Mar 2012 Location: Home iTrader: (0)	If you are physically attempting to move the wastegates and they are not moving (ie binding), sounds like you need new turbos. You could always try greasing up the arms first though.
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09-03-2015, 08:13 AM	#5
chiefsotos Second Lieutenant 41 Rep 298 Posts Drives: BMW 335 E93 Join Date: Jul 2008 Location: Greece iTrader: (0)	when i try phisically to move it, i can. But i thought whith the car in neutral and presing the throttle, that they should move also.
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09-03-2015, 08:38 AM	#6
alexg212 Second Lieutenant 52 Rep 278 Posts Drives: 335is Coupe/Mustang Gt Join Date: Oct 2013 Location: DFW iTrader: (0)	Could also be wastegate control solenoid. Sometimes my wastegates would get stuck open, and it wasn't the actual wastegates. Just the control solenoid.
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09-03-2015, 09:45 AM	#7
fredcase Captain 261 Rep 776 Posts Drives: Bmw=trash Join Date: Mar 2014 Location: Noyb iTrader: (1)	wastegate actuator could be busted also. Easy inexpensive fix to try before writing off the turbos.
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09-03-2015, 02:32 PM	#8
Real Nice Guy . 31 Rep 370 Posts Drives: 2008 e90 M3 Join Date: Nov 2013 Location: NJ iTrader: (4)	I can manually move the wastegate with no problems, BUT there is a good amount of play where the c-clip hold the actuator rod to the wastegate arm. If I don't push the arm just right the assemble moves a lil and can bind. Already tried replacing both solenoids. No luck there Could something as simple as a new c-clip hold the assemble tighter and keep it from binding? Really don't want to replace a turbo
	Appreciate 0 Quote

09-03-2015, 06:57 PM	#9
Real Nice Guy . 31 Rep 370 Posts Drives: 2008 e90 M3 Join Date: Nov 2013 Location: NJ iTrader: (4)	Hmmmmm well I created a solution. Car is back to normal and running smoothly. I used my compressor to send around 25 psi into the vacuum lines related to the wastegate system, heard what sounded like a metal on metal bang and now my actuator rod moves freely when I start the car.... No idea what actually happened but thought I would share my experience.
	Appreciate 0 Quote

10-03-2015, 10:51 AM	#13
N44183 New Member 2 Rep 19 Posts Drives: 07 e90 Join Date: Aug 2015 Location: Jacksonville, FL iTrader: (0)	Boost solenoid? Tested mine (vac pump on nipple that goes to canister) and vacuum bled down consistently. Are they bad?
	Appreciate 0 Quote