HELP! I have no idea what these codes mean

obriennathaniel · 09-11-2014, 02:58 AM

So recently i installed the ATM FMIC and the CG precision 3.5" exhaust, the day after the install ive been having problems. ive lost a lot of HP and Tq, pretty sure i have a bad boost leak somewhere but ive been too busy to look for it. The one wierd thing that doesnt seem to add up is it doesnt shift gears when i floor it, it just stays at redline until i let off the gas. But with normal driving it shifts gears just fine but still feels very underpowered. is that a sympton of boost leak also?

Jeff@TopGearSolutions · 09-11-2014, 12:09 PM

No CEL?

mike@x-ph.com · 09-11-2014, 12:11 PM

If you have CObb or JB4 check the codes and post some logs.

obriennathaniel · 09-11-2014, 07:00 PM

Quote:

Originally Posted by Jeff@TopGearSolutions

No CEL?

not on the dash no

Quote:

Originally Posted by mike@x-ph.com

If you have CObb or JB4 check the codes and post some logs.

the codes are 152D08, 152108, 122108 (BOV plausibility) and 152208 (MAP 2) map 5 has the same results

I also checked every connection on my intake up to the manifold and everything is solid, sensors included.

f30GTR · 09-11-2014, 11:04 PM

If I were you I would lift the car and start it and see if you have a leak along the exhaust. Although that kind of dip in the graph probably is not the exhaust but I would check around your down pipe.

obriennathaniel · 09-12-2014, 12:30 AM

Quote:

Originally Posted by f30GTR

If I were you I would lift the car and start it and see if you have a leak along the exhaust. Although that kind of dip in the graph probably is not the exhaust but I would check around your down pipe.

I did, i checked the downpipe to the turbo manifold connection and to the exhaust, all solid

Stubok · 06-03-2015, 09:06 AM

Did you ever figure this out. I think I have the same issue.

I'm thinking it may be the Diverter Valve leaking (apparently common)

I also have an ATM intercooler. I removed my Chargepipes and put back the OEM ones as thought they may be leaking, but I still have the same issue.

09-11-2014, 02:58 AM	#1
obriennathaniel @obriennathaniel_f30 on Instagram 515 Rep 1,063 Posts Drives: 582whp/596wtq '13 335i Join Date: Jan 2014 Location: Houston,Tx ig:obriennathaniel_f30 iTrader: (0)	HELP! I have no idea what these codes mean So recently i installed the ATM FMIC and the CG precision 3.5" exhaust, the day after the install ive been having problems. ive lost a lot of HP and Tq, pretty sure i have a bad boost leak somewhere but ive been too busy to look for it. The one wierd thing that doesnt seem to add up is it doesnt shift gears when i floor it, it just stays at redline until i let off the gas. But with normal driving it shifts gears just fine but still feels very underpowered. is that a sympton of boost leak also? __________________ CG Precision VS-1 Exhaust\DR-1 DownPipe \| PS2 Turbo\Inlet \| PDU PI w/Fuel-it platinum kit & E sensor \| GFB DV+ Diverter Valve \| BM3 w/AIC2-V\|Tune CaryTheLabelGuy \| Full E85 \| ATM FMIC \| ER Chargepipe Inlet/Outlet \| AFE Intake \| BC Coilovers \| PSS 255/40-275/35 Velos Designwerks S3 two piece 19x9/19x10 \| Osram Xenarc \| LED retro \| AWRON digital AC gauge\| Last edited by obriennathaniel; 09-11-2014 at 07:36 PM..
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09-11-2014, 12:09 PM	#2
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	No CEL?
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09-11-2014, 12:11 PM	#3
mike@x-ph.com BimmerPost Supporting Vendor 24165 Rep 190,725 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	If you have CObb or JB4 check the codes and post some logs. __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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09-11-2014, 11:04 PM	#5
f30GTR First Lieutenant 51 Rep 341 Posts Drives: 2014 AW F30 335i M-Sport MT Join Date: Oct 2008 Location: Chicago iTrader: (1)	If I were you I would lift the car and start it and see if you have a leak along the exhaust. Although that kind of dip in the graph probably is not the exhaust but I would check around your down pipe.
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06-03-2015, 09:06 AM	#7
Stubok Lieutenant 472 Rep 577 Posts Drives: Melbourne Red F30 328i M Sport Join Date: Dec 2014 Location: Austin TX iTrader: (0)	Did you ever figure this out. I think I have the same issue. I'm thinking it may be the Diverter Valve leaking (apparently common) I also have an ATM intercooler. I removed my Chargepipes and put back the OEM ones as thought they may be leaking, but I still have the same issue.
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