30FF code after Intake valve cleaning by Dealership

N54_Fan · 08-27-2012, 05:46 PM

So last week I got my 57K mile 2007 car's intake valves cleaned because I was getting hesitation at WOT at the track last month. For a few days the car was running really strong. Now today I decided to push it a bit and at middle of 3rd with rpms >2500 I can only get boost to max out at ~7 psi with Procede Rev 2.5. The car feels sluggish and no hesitation just like it has no boost. Then I got yellow 1/2 CEL. BT code says 30FF. I managed to get the 1/2 CEL to go away with restart and logged with Procede. Funny thing Procede showed no codes. Here is the log.

Any ideas where I should look first given the recent intake valve cleaning?

Any help is appreciated. Thanks!!

marv85 · 08-27-2012, 05:49 PM

Connection of CP to throttle body and CP to FMIC would be my first guess.

Could also be worn out gaskets : manifold to engine. Unlikely because they would have replaced it

enrita · 08-27-2012, 06:03 PM

they clearly messed up putting back everything

N54_Fan · 08-27-2012, 06:16 PM

Quote:

Originally Posted by enrita

they clearly messed up putting back everything

Yeah,...I know. I think I found it. I have the ER Charge pipe. I had firmly pushed everything but never saw this till Marv85 recommended the CP area. Here is what I found...

Dumbasses!!

Its ALMOST comical......but not really.

Thanks guys. Now I need the car to cool down so I can fix it.

LivnLife31 · 08-27-2012, 06:25 PM

Quote:

Originally Posted by N54_Fan

So last week I got my 57K mile 2007 car's intake valves cleaned because I was getting hesitation at WOT at the track last month. For a few days the car was running really strong. Now today I decided to push it a bit and at middle of 3rd with rpms >2500 I can only get boost to max out at ~7 psi with Procede Rev 2.5. The car feels sluggish and no hesitation just like it has no boost. Then I got yellow 1/2 CEL. BT code says 30FF. I managed to get the 1/2 CEL to go away with restart and logged with Procede. Funny thing Procede showed no codes. Here is the log.

Any ideas where I should look first given the recent intake valve cleaning?

Any help is appreciated. Thanks!!

How much did you end up spending on the intake cleaning?

N54_Fan · 08-27-2012, 06:34 PM

Quote:

Originally Posted by LivnLife31

How much did you end up spending on the intake cleaning?

You have pm.

marv85 · 08-27-2012, 06:45 PM

At least you found it, and it's an easy fix

pits200 · 08-27-2012, 06:53 PM

I have the 30ff code also but mine just magically appeared after no changes to my car in months.

Glad to see it was an easy fix for you.

marv85 · 08-27-2012, 07:33 PM

Quote:

Originally Posted by pits200

I have the 30ff code also but mine just magically appeared after no changes to my car in months.

Glad to see it was an easy fix for you.

I'm in the same situation. I've been getting 30FF and car not being able to hold boost. Now out of nowhere it works again! which sucks because you never know when it pops out. I;m not sure what to do at this point. but i have the feeling it's vacuum control/Wastegate related and not a boost leak.

MrRager · 08-27-2012, 07:56 PM

if the dealership did it and then you through a code, id take it back to them

N54_Fan · 08-27-2012, 08:46 PM

I appreciate the input guys. Yes it was easy in theory but took me nearly 90 min just to wrangle the damn thing in place again. Every time I tightened it it would slip off again. Feels solid now!

As for your boost leaks that are intermittent I would look at the vacuum lines to your DV or boost gauge. Or the DV themselves. I had an intermittent problem and found these were loose...not off completely but loose.

As for taking to the dealer to have them fix it, well that would have taken more time than it would for me to fix and they probably still would not have cared to tidy things up.

We will see if tomorrow its fixed when I test.

Thanks again guys.

marv85 · 08-28-2012, 11:43 AM

Quote:

Originally Posted by N54_Fan

I appreciate the input guys. Yes it was easy in theory but took me nearly 90 min just to wrangle the damn thing in place again. Every time I tightened it it would slip off again. Feels solid now!

As for your boost leaks that are intermittent I would look at the vacuum lines to your DV or boost gauge. Or the DV themselves. I had an intermittent problem and found these were loose...not off completely but loose.

As for taking to the dealer to have them fix it, well that would have taken more time than it would for me to fix and they probably still would not have cared to tidy things up.

We will see if tomorrow its fixed when I test.

Thanks again guys.

Thanks for the advice, I'll check the DVs... I'll check anything at this point!

08-27-2012, 05:46 PM	#1
N54_Fan Lieutenant 34 Rep 502 Posts Drives: BMW Join Date: May 2008 Location: Parts unknown iTrader: (0)	30FF code after Intake valve cleaning by Dealership So last week I got my 57K mile 2007 car's intake valves cleaned because I was getting hesitation at WOT at the track last month. For a few days the car was running really strong. Now today I decided to push it a bit and at middle of 3rd with rpms >2500 I can only get boost to max out at ~7 psi with Procede Rev 2.5. The car feels sluggish and no hesitation just like it has no boost. Then I got yellow 1/2 CEL. BT code says 30FF. I managed to get the 1/2 CEL to go away with restart and logged with Procede. Funny thing Procede showed no codes. Here is the log. Any ideas where I should look first given the recent intake valve cleaning? Any help is appreciated. Thanks!! Attached Images
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08-27-2012, 05:49 PM	#2
marv85 Colonel 71 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	Connection of CP to throttle body and CP to FMIC would be my first guess. Could also be worn out gaskets : manifold to engine. Unlikely because they would have replaced it __________________ '18 F80 M3 Comp 6MT - Stock '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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08-27-2012, 06:03 PM	#3
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	they clearly messed up putting back everything __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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08-27-2012, 06:45 PM	#7
marv85 Colonel 71 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	At least you found it, and it's an easy fix __________________ '18 F80 M3 Comp 6MT - Stock '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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08-27-2012, 06:53 PM	#8
pits200 Colonel 552 Rep 2,598 Posts Drives: 09 335i X-Drive Black Sapphire Join Date: Mar 2010 Location: Pittsburgh iTrader: (1)	I have the 30ff code also but mine just magically appeared after no changes to my car in months. Glad to see it was an easy fix for you.
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08-27-2012, 07:56 PM	#10
MrRager First Lieutenant 25 Rep 381 Posts Drives: 335i Join Date: Jul 2011 Location: 73134 iTrader: (0)	if the dealership did it and then you through a code, id take it back to them __________________ 2008 335i 6MT
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08-27-2012, 08:46 PM	#11
N54_Fan Lieutenant 34 Rep 502 Posts Drives: BMW Join Date: May 2008 Location: Parts unknown iTrader: (0)	I appreciate the input guys. Yes it was easy in theory but took me nearly 90 min just to wrangle the damn thing in place again. Every time I tightened it it would slip off again. Feels solid now! As for your boost leaks that are intermittent I would look at the vacuum lines to your DV or boost gauge. Or the DV themselves. I had an intermittent problem and found these were loose...not off completely but loose. As for taking to the dealer to have them fix it, well that would have taken more time than it would for me to fix and they probably still would not have cared to tidy things up. We will see if tomorrow its fixed when I test. Thanks again guys.
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