Loud BANG! Then CEL, Limp, and Code: 30FF

ThorsHammer · 06-01-2009, 09:01 PM

Driving home, doing about 35, punch it to pass someone, and BANG! It felt like I had a blowout on the driver's front. It was LOUD, and I'm not exaggerating. The concussion was significant enough that I could feel it in my leg. I change lanes, checking my rear view mirror to see if I had hit anything.

Nope. Nothing.

Ding. Check Engine Light. Ding. Limp Mode. So I pull over into a gas station, shut her down and pop the hood.

A quick inspection doesn't reveal anything obvious...I couldn't find anything that had "exploded".

Fortunately I had my laptop, so I hooked up the Bav Tech, and Code: 30FF is present. So I let her sit for about ten minutes, set the JB3 to Map 0, and started it back up.

No light, no current code. Huh. I begin to drive home. First time I get into any boost, Limp Mode and the code show up.

So, I've done the search and realize that it's some sort of boost leak. I see a lot of correlation with Forge DV's, which I just installed one week ago...yellow spring.

I guess what I'm trying to figure out is what the hell was the explosion, and what should I be looking for? Clearly I'm going to have to remove by Injen DCI (pain in the ass). But what could have caused the loud bang?

Finally, I have no drivetrain warranty, so taking it to the dealer is an absolute last option.

David 12 · 06-01-2009, 09:11 PM

Possibly a loose charge pipe?

OpenFlash · 06-01-2009, 09:11 PM

Sounds like an IC pipe popped off under boost. Just got to inspect the entire system from FMIC inlet to the throttle body elbow.

Shiv

ThorsHammer · 06-01-2009, 09:17 PM

Quote:

Originally Posted by shiv@vishnu

Sounds like an IC pipe popped off under boost. Just got to inspect the entire system from FMIC inlet to the throttle body elbow.

Shiv

Do I have to remove the front bumper? I didn't do the FMIC install, so I'm not really that familiar with it.

ThorsHammer · 06-01-2009, 10:04 PM

Okay, so I did some digging/pulling, and sure enough, the FMIC's driver-side hose seems like it's completely off. I can't see where it connects, but it feels like it's off.

I guess I'll have to take it to the shop who did the install and have them check it out.

So now my question is, why the heck did this happen to begin with? Is it because of the yellow springs (vs. green) in the FDV's? Was the clamp loose on the FMIC? I don't want this to keep happening.

By the way, I got Car of the Month!

thisguyhere · 06-01-2009, 10:13 PM

congrats on car of the month, but man, you have PROBLEM-PRONE CAR OF THE YEAR!!!

Sniz · 06-01-2009, 10:31 PM

Quote:

Originally Posted by ThorsHammer

Okay, so I did some digging/pulling, and sure enough, the FMIC's driver-side hose seems like it's completely off. I can't see where it connects, but it feels like it's off.

I guess I'll have to take it to the shop who did the install and have them check it out.

So now my question is, why the heck did this happen to begin with? Is it because of the yellow springs (vs. green) in the FDV's? Was the clamp loose on the FMIC? I don't want this to keep happening.

By the way, I got Car of the Month!

wasnt installed properly if it popped off. silicone couplers werent on far enough or the clamps werent tight enough.

you can get to the IC couplings from the bottom by just taking off the bottom panel below the car.....it takes roughly 15 8mm screws to get it off.

goodluck.

ThorsHammer · 06-01-2009, 10:42 PM

Quote:

Originally Posted by Sniz

wasnt installed properly if it popped off. silicone couplers werent on far enough or the clamps werent tight enough.

you can get to the IC couplings from the bottom by just taking off the bottom panel below the car.....it takes roughly 15 8mm screws to get it off.

goodluck.

Thanks for that, Sniz. So you don't think there's any correlation with the Forge DV's?

It just seems odd that this just happened, one week after the install. I've had the FMIC on for about 4000k miles, and the DV's for one week.

Turkishexpress · 06-01-2009, 10:45 PM

Anytime you hear a really loud pop in a turbo car more likely then not its one of the IC piping. Try to use some tbolts to secure the IC piping.

Sniz · 06-01-2009, 10:50 PM

Quote:

Originally Posted by ThorsHammer

Thanks for that, Sniz. So you don't think there's any correlation with the Forge DV's?

It just seems odd that this just happened, one week after the install. I've had the FMIC on for about 4000k miles, and the DV's for one week.

it could have some correlation to the Forge DV's, but it wouldn't be the Forge units fault really....they hold boost better than the stock units. My car actually developed a boost leak not long after the Forge units went on because of that, more boost = more chances for leaks to form or for pipes to blow off.

If you can get your car up on Rhino ramps, you can get access to the areas you need.

Mote · 06-01-2009, 10:51 PM

Congrats on car of the month!! Welcome to the club!

I had this similar problem on my Audi TT with my FMIC. Same loud bang and CEL followed by limp mode. Ended up being the inlet hose also. More than likely what's wrong with your car. Good luck brotha!

ThorsHammer · 06-01-2009, 10:54 PM

Quote:

Originally Posted by Sniz

it could have some correlation to the Forge DV's, but it wouldn't be the Forge units fault really....they hold boost better than the stock units. My car actually developed a boost leak not long after the Forge units went on because of that, more boost = more chances for leaks to form or for pipes to blow off.

If you can get your car up on Rhino ramps, you can get access to the areas you need.

Oh cool. I have Rhino's now for oil changes. So just remove all those bolts for the underpanel and I should be able to see what's going on?

ybbiz34 · 06-01-2009, 10:55 PM

Quote:

Originally Posted by ThorsHammer

Finally, I have no drivetrain warranty, so taking it to the dealer is an absolute last option.

Why do you have no drivetrain warranty?

Sniz · 06-01-2009, 10:58 PM

Quote:

Originally Posted by ThorsHammer

Oh cool. I have Rhino's now for oil changes. So just remove all those bolts for the underpanel and I should be able to see what's going on?

yup!

SfValley335i · 06-01-2009, 11:06 PM

Ive driven my car with the IC inlet pipe disconnected... The car just felt PISS slow, similar to half engine.... and the car sounds really throaty.

Panoz · 06-01-2009, 11:08 PM

Quote:

Originally Posted by ThorsHammer

Thanks for that, Sniz. So you don't think there's any correlation with the Forge DV's?

It just seems odd that this just happened, one week after the install. I've had the FMIC on for about 4000k miles, and the DV's for one week.

The intake had to be removed in order to have the DVs installed. So what possibly happened is that the guy who made the installion was quite in a hurry and didnt placed the intake properly in place.

Sniz · 06-01-2009, 11:09 PM

Quote:

Originally Posted by SfValley335i

Ive driven my car with the IC inlet pipe disconnected... The car just felt PISS slow, similar to half engine.... and the car sounds really throaty.

ha...not the best idea, at all

I did it too though

Sniz · 06-01-2009, 11:11 PM

Quote:

Originally Posted by Panoz

The intake had to be removed in order to have the DVs installed. So what possibly happened is that the guy who made the installion was quite in a hurry and didnt placed the intake properly in place.

intake would have nothing to do with a boost leak.

you can run the car w no intake at all fyi. your just sucking in unfiltered air. Drag cars do it all the time.

Former_Boosted_IS · 06-02-2009, 05:32 AM

That is either a charge pipe blowing off of the driver's side of the IC pipe blowing off.

ss134 · 06-02-2009, 06:50 AM

Quote:

Originally Posted by ybbiz34

Why do you have no drivetrain warranty?

Its a pretty harrowing read:

http://www.e90post.com/forums/showthread.php?t=240142

ThorsHammer · 06-02-2009, 08:21 AM

Quote:

Originally Posted by Former_Boosted_IS

That is either a charge pipe blowing off of the driver's side of the IC pipe blowing off.

After doing a complete inspection and removing part of my intake, sure enough, the charge pipe had completely blown off! It was a bear to get back on, so I can only imagine the amount of pressure that was required to blow it off...STILL LOCKED!

So now I need to solve the mystery as to why it happened, in the event it does it again.

Thanks for all the help.

Former_Boosted_IS · 06-02-2009, 08:26 AM

Quote:

Originally Posted by ThorsHammer

After doing a complete inspection and removing part of my intake, sure enough, the charge pipe had completely blown off! It was a bear to get back on, so I can only imagine the amount of pressure that was required to blow it off...STILL LOCKED!

So now I need to solve the mystery as to why it happened, in the event it does it again.

Thanks for all the help.

Was the clamp popped up or squeezed down in the locking slot?

06-01-2009, 09:01 PM	#1
ThorsHammer Major 85 Rep 1,389 Posts Drives: '09 BMW 335i Coupe Join Date: Jan 2009 Location: San Antonio, TX iTrader: (10)	Loud BANG! Then CEL, Limp, and Code: 30FF Driving home, doing about 35, punch it to pass someone, and BANG! It felt like I had a blowout on the driver's front. It was LOUD, and I'm not exaggerating. The concussion was significant enough that I could feel it in my leg. I change lanes, checking my rear view mirror to see if I had hit anything. Nope. Nothing. Ding. Check Engine Light. Ding. Limp Mode. So I pull over into a gas station, shut her down and pop the hood. A quick inspection doesn't reveal anything obvious...I couldn't find anything that had "exploded". Fortunately I had my laptop, so I hooked up the Bav Tech, and Code: 30FF is present. So I let her sit for about ten minutes, set the JB3 to Map 0, and started it back up. No light, no current code. Huh. I begin to drive home. First time I get into any boost, Limp Mode and the code show up. So, I've done the search and realize that it's some sort of boost leak. I see a lot of correlation with Forge DV's, which I just installed one week ago...yellow spring. I guess what I'm trying to figure out is what the hell was the explosion, and what should I be looking for? Clearly I'm going to have to remove by Injen DCI (pain in the ass). But what could have caused the loud bang? Finally, I have no drivetrain warranty, so taking it to the dealer is an absolute last option. __________________ "SYONRA" is for sale! http://www.e90post.com/forums/showthread.php?t=366678 BSM '09 e92 335i \| Performance: JB3, RR Catted DP's, INJEN DCI, Britalman Exhst, AA FMIC, FORGE DVs \| Suspension: ST-V1 Coils, Hotchkis Chassis Brace & F/R Sways \| Wheels: Bremmer Kraft BR03s, Brake Performance Rotors, Cool Carbon Pads, ECS Lines \| Exterior: OEM Aero Lip/Rear, ****** CF Trunk Lid, BLUX5 Angels, M-Force M3 Sides \| Interior: Passport 9500ci, Black Trim, M3 Wheel
	Appreciate 0 Tweet Quote

06-01-2009, 09:11 PM	#2
David 12 Major 115 Rep 1,048 Posts Drives: 2019 BMW X5 50i BSM, M Sport Join Date: Jan 2007 Location: Omaha iTrader: (0)	Possibly a loose charge pipe?
	Appreciate 0 Quote

06-01-2009, 09:11 PM	#3
OpenFlash 1806 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	Sounds like an IC pipe popped off under boost. Just got to inspect the entire system from FMIC inlet to the throttle body elbow. Shiv
	Appreciate 0 Quote

06-01-2009, 10:04 PM	#5
ThorsHammer Major 85 Rep 1,389 Posts Drives: '09 BMW 335i Coupe Join Date: Jan 2009 Location: San Antonio, TX iTrader: (10)	Okay, so I did some digging/pulling, and sure enough, the FMIC's driver-side hose seems like it's completely off. I can't see where it connects, but it feels like it's off. I guess I'll have to take it to the shop who did the install and have them check it out. So now my question is, why the heck did this happen to begin with? Is it because of the yellow springs (vs. green) in the FDV's? Was the clamp loose on the FMIC? I don't want this to keep happening. By the way, I got Car of the Month! __________________ "SYONRA" is for sale! http://www.e90post.com/forums/showthread.php?t=366678 BSM '09 e92 335i \| Performance: JB3, RR Catted DP's, INJEN DCI, Britalman Exhst, AA FMIC, FORGE DVs \| Suspension: ST-V1 Coils, Hotchkis Chassis Brace & F/R Sways \| Wheels: Bremmer Kraft BR03s, Brake Performance Rotors, Cool Carbon Pads, ECS Lines \| Exterior: OEM Aero Lip/Rear, ****** CF Trunk Lid, BLUX5 Angels, M-Force M3 Sides \| Interior: Passport 9500ci, Black Trim, M3 Wheel
	Appreciate 0 Quote

06-01-2009, 10:13 PM	#6
thisguyhere Captain 77 Rep 736 Posts Drives: bmw Join Date: Jun 2008 Location: Texas iTrader: (7)	congrats on car of the month, but man, you have PROBLEM-PRONE CAR OF THE YEAR!!!
	Appreciate 0 Quote

06-01-2009, 10:45 PM	#9
Turkishexpress Gixxer Man 14 Rep 599 Posts Drives: '08 335i E90 / '06 Range HSE Join Date: Aug 2008 Location: Tysons/Sterling, VA iTrader: (2)	Anytime you hear a really loud pop in a turbo car more likely then not its one of the IC piping. Try to use some tbolts to secure the IC piping. __________________ Stable: 2008 E90 335i JB3 etc..., 2006 Range Rover HSE, K7 GSX-R 600 Former Stable: 2008 MB C300, 2007 Chevy Avalanche, 2006 Evo IX (544awhp), 2005 Sti, 2003 Evo...
	Appreciate 0 Quote

06-01-2009, 10:51 PM	#11
Mote Colonel 143 Rep 2,162 Posts Drives: 2008 E92 - 1991 E30 Join Date: Jan 2008 Location: Beverly Hills, CA iTrader: (0)	Congrats on car of the month!! Welcome to the club! I had this similar problem on my Audi TT with my FMIC. Same loud bang and CEL followed by limp mode. Ended up being the inlet hose also. More than likely what's wrong with your car. Good luck brotha!
	Appreciate 0 Quote

06-01-2009, 11:06 PM	#15
SfValley335i Colonel 167 Rep 2,409 Posts Drives: Current:135i Sold:335i sedan Join Date: Mar 2007 Location: City of Angels iTrader: (8)	Ive driven my car with the IC inlet pipe disconnected... The car just felt PISS slow, similar to half engine.... and the car sounds really throaty.
	Appreciate 0 Quote

06-02-2009, 05:32 AM	#19
Former_Boosted_IS Major General 315 Rep 5,175 Posts Drives: 4 Wheels Join Date: Aug 2007 Location: Planet Earth! iTrader: (15)	That is either a charge pipe blowing off of the driver's side of the IC pipe blowing off.
	Appreciate 0 Quote