996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Overboost and Limp Mode

Thread Tools
 
Rate Thread
 
Old Jun 18, 2014 | 10:54 AM
  #91  
markski@markskituning's Avatar
Basic Sponsor
20 Year Member
Joined: Oct 2004
Posts: 9,730
From: CHICAGO
Rep Power: 604
markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !
Originally Posted by scsponger31
The only code that is coming through is P1250 Boost Pressure Deviation, above limit.

It seems that the passenger side of the system is where the problem lies. GMG came to this determination by disconnecting the wastegates one at a time, while the car was on the dyno.
if they swapped turbos with wgs and problem is still there then it would not make sense...
they should log the car via durametric see whats actually happening...
 
__________________

2001 996TT 3.6L and stock ECU
9.66
seconds @ 147.76 mph 1/4 mile
click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL




Old Jun 18, 2014 | 11:03 AM
  #92  
scsponger31's Avatar
Thread Starter
|
Registered User
Joined: Jun 2011
Posts: 506
From: San Juan Capistrano, Ca
Rep Power: 42
scsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to behold
Originally Posted by MARKSKI@911tuning
if they swapped turbos with wgs and problem is still there then it would not make sense...
they should log the car via durametric see whats actually happening...
Thanks Mark.

I may be asking the wrong question, but what could cause a turbo to seemingly not boost when the wastegate is unhooked?

Any particular values I should ask them to log?
 

Last edited by scsponger31; Jun 18, 2014 at 11:14 AM.
Old Jun 18, 2014 | 11:14 AM
  #93  
markski@markskituning's Avatar
Basic Sponsor
20 Year Member
Joined: Oct 2004
Posts: 9,730
From: CHICAGO
Rep Power: 604
markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !markski@markskituning Is a GOD !
3rd gear pull WOT. From 2200 to 6500 rpm.

Rpm
Engine load
Ignition angle
Oxygen sensing lambda value bank 1 and bank2.
Setpoint lambda bank1 and 2
Boost pressure of sensor
Setpoint boost.
 
Old Jun 18, 2014 | 11:21 AM
  #94  
scsponger31's Avatar
Thread Starter
|
Registered User
Joined: Jun 2011
Posts: 506
From: San Juan Capistrano, Ca
Rep Power: 42
scsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to behold
Originally Posted by MARKSKI@911tuning
3rd gear pull WOT. From 2200 to 6500 rpm.

Rpm
Engine load
Ignition angle
Oxygen sensing lambda value bank 1 and bank2.
Setpoint lambda bank1 and 2
Boost pressure of sensor
Setpoint boost.
Thanks Mark! They biggest problem with 3rd gear WOT is it typically goes into limp mode prior to completing the pull. SO FRUSTRATING.

Also, I may be asking the wrong question, but what could cause a turbo to seemingly not boost when the wastegate is unhooked?
 
Old Jul 2, 2014 | 09:31 PM
  #95  
168's Avatar
168
Registered User
Joined: Aug 2006
Posts: 365
From: Alberta,Canada
Rep Power: 35
168 is infamous around these parts168 is infamous around these parts
did you get this resolved?
 
Old Jul 3, 2014 | 08:29 AM
  #96  
scsponger31's Avatar
Thread Starter
|
Registered User
Joined: Jun 2011
Posts: 506
From: San Juan Capistrano, Ca
Rep Power: 42
scsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to behold
Originally Posted by 168
did you get this resolved?
I actually just picked the car up last night!

The cause ended up being the DME.

GMG was awesome in how they handled everything.
 
Old Jul 3, 2014 | 08:50 AM
  #97  
32krazy!'s Avatar
Banned
Joined: Dec 2008
Posts: 5,551
From: tn
Rep Power: 628
32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !32krazy! Is a GOD !
glad you got the car back in top shape danny!
 
Old Jul 3, 2014 | 09:31 AM
  #98  
scsponger31's Avatar
Thread Starter
|
Registered User
Joined: Jun 2011
Posts: 506
From: San Juan Capistrano, Ca
Rep Power: 42
scsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to behold
Originally Posted by 32krazy!
glad you got the car back in top shape danny!
Thanks for all your help Steve!!

I just need to give her a bath and all will be right!
 
Old Jul 3, 2014 | 10:59 AM
  #99  
'02996ttx50's Avatar
Registered User
15 Year Member
Joined: May 2009
Posts: 7,984
From: la
Rep Power: 608
'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !
congrats! man that was as long journey!
 
Old Jul 3, 2014 | 03:52 PM
  #100  
Steamboat's Avatar
Registered User
Joined: Sep 2010
Posts: 687
From: Colorado Mtns.
Rep Power: 80
Steamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond reputeSteamboat has a reputation beyond repute
Originally Posted by scsponger31
I actually just picked the car up last night!

The cause ended up being the DME.

GMG was awesome in how they handled everything.
Do you have any information on what caused the DME to fail? Glad it all worked out and that you were pleased with GMG's work. They seem to enjoy a very good reputation. Best,
 
Old Jul 3, 2014 | 04:05 PM
  #101  
rmc1148's Avatar
Registered User
Joined: Jul 2012
Posts: 2,382
From: kirkwood pa
Rep Power: 434
rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !
Got your response on other site and this is good news, I bet your relieved.
 
Old Jul 3, 2014 | 10:09 PM
  #102  
scsponger31's Avatar
Thread Starter
|
Registered User
Joined: Jun 2011
Posts: 506
From: San Juan Capistrano, Ca
Rep Power: 42
scsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to behold
Originally Posted by Steamboat
Do you have any information on what caused the DME to fail? Glad it all worked out and that you were pleased with GMG's work. They seem to enjoy a very good reputation. Best,
No clue. I am going to send it to be repaired so hopefully I will learn something.


Originally Posted by rmc1148
Got your response on other site and this is good news, I bet your relieved.
Super relieved and happy to have it back.

Thank you everyone for all your help!!
 
Old Jul 4, 2014 | 05:28 AM
  #103  
rmc1148's Avatar
Registered User
Joined: Jul 2012
Posts: 2,382
From: kirkwood pa
Rep Power: 434
rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !rmc1148 Is a GOD !
Did they give you a donor DME or did you buy another as I see your sending old out for repair.
 
Old Jul 4, 2014 | 09:29 AM
  #104  
scsponger31's Avatar
Thread Starter
|
Registered User
Joined: Jun 2011
Posts: 506
From: San Juan Capistrano, Ca
Rep Power: 42
scsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to beholdscsponger31 is a splendid one to behold
Originally Posted by rmc1148
Did they give you a donor DME or did you buy another as I see your sending old out for repair.
I bought a replacement but at this point having two seems like a good plan.
 
Old Jul 4, 2014 | 11:36 AM
  #105  
'02996ttx50's Avatar
Registered User
15 Year Member
Joined: May 2009
Posts: 7,984
From: la
Rep Power: 608
'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !'02996ttx50 Is a GOD !
it's incredible there isn't some diagnostic function of the pwis whatzit that might've given some indication the ecu was acting up. that might have saved you untold grief!?

bottom line is yer back up n runnin! if ya ever get up malibu way..
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -6. The time now is 05:14 AM.