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forge 004 problem

Old Aug 7, 2008 | 06:36 PM
  #1  
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Default forge 004 problem

to all the people that hate BOVs, save your bashing for some other time

I installed the BOV and plugged the hose like i am supposed to. afterwords, the car was running slightly rough between shifts (right after it vents to atmosphere) so I just figured that it will smooth out as the ECU "learns" how to correct itself.

well, after taking it for a 20 minute drive, im pulling up to my house and the car stalled as i was trying to pull into my drive way. i restarted it, pulled into the driveway, and the car stalled as i came to a stop. i checked and re-checked everything that i did and there are no leaks anywhere relating to the BOV install, but unfortunately i havent got around to installing my boost gauge yet so i cant say for sure that there isnt a leak somewhere else. any ideas anyone?
 
Old Aug 7, 2008 | 06:47 PM
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We've already established a conclusion for the BOV debate. No one is going to put their dukes up, relax

See if there are fault codes, and make sure the bpv vac line is attatched/intact.

https://www.audiforums.com/forum/sho...d.php?t=100217
 

Last edited by onepoint8tee; Aug 7, 2008 at 06:51 PM.
Old Aug 7, 2008 | 07:05 PM
  #3  
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the vac line is attached and seems to be okay, but it goes to a different place than the one in the pics of the thread that you linked. it goes toward the same area but actually goes under the intake manifold and connects to something under there. I'll check for codes now.
 
Old Aug 7, 2008 | 07:06 PM
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It goes under your intake manifold into your N249 valve, which is an ECU-controlled regulator that determines how much boost pressure your DV/BOV holds. Bypass it!
 
Old Aug 7, 2008 | 07:08 PM
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am i supposed to? i never saw that anywhere in the install thread(s)
 
Old Aug 7, 2008 | 07:10 PM
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You're not supposed to, but you can. Maybe that will help things.

Did any codes come up?
 
Old Aug 7, 2008 | 07:12 PM
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Originally Posted by Leifer
It goes under your intake manifold into your N249 valve, which is an ECU-controlled regulator that determines how much boost pressure your DV/BOV holds. Bypass it!
yup only a dbw thing (2000+)
I bypassed mine too
It's not a solution to his problem though.
 
Old Aug 7, 2008 | 07:14 PM
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Yup, bypassed mine too! Did you get a CEL for it at all?

Yeah, it's no solution, but who knows. We're still waiting on the fault codes.
 
Old Aug 7, 2008 | 07:27 PM
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alright sorry it took so long. here they are:

VAG-COM Version: Release 311.2-N

Control Module Part Number: 4B0 906 018 P
Component and/or Version: 1.8L R4/5VT G 0008
Software Coding: 07201
Work Shop Code: WSC 06335
4 Faults Found:
17521 - Oxygen (Lambda) Sensor: B1 S1: Internal Resistance too High
P1113 - 35-10 - - - Intermittent
17522 - Oxygen (Lambda) Sensor: B1 S2: Internal Resistance too High
P1114 - 35-10 - - - Intermittent
16795 - Secondary Air Injection System: Incorrect Flow Detected
P0411 - 35-10 - - - Intermittent
17535 - Fuel Trim: Bank 1 (Mult): System too Rich
P1127 - 35-10 - - - Intermittent


the system too rich code is the only one that wasnt there before the BOV install. i know i need to fix the o2 sensors, but they arent related to this problem right?
 
Old Aug 7, 2008 | 07:35 PM
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Ya you're going rich off throttle for sure... If your 02 sensor is bad, that may cause your ecu to not adapt correctly for sudden lean/rich conditions. Lazy/non working 02 sensors= flakey A/F ratios. Use a BOV that can make you go rich off throttle and it makes things worse.
 

Last edited by onepoint8tee; Aug 7, 2008 at 07:41 PM.

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