Notices
997 Forum 2005-2012
Sponsored by:
Sponsored by:

Advice on 997.2 ECU

Thread Tools
 
Search this Thread
 
Old 12-28-2019, 01:03 PM
  #16  
wormwood
AutoX
Thread Starter
 
wormwood's Avatar
 
Join Date: Dec 2019
Posts: 14
Received 0 Likes on 0 Posts
Default

WP0AB29919S721022
Clean Carfax
Old 12-28-2019, 01:12 PM
  #17  
Doug H
Nordschleife Master
 
Doug H's Avatar
 
Join Date: Mar 2003
Location: Destin, Nashville, In a 458 Challenge
Posts: 5,128
Received 904 Likes on 532 Posts
Default

Originally Posted by wormwood
WP0AB29919S721022
Clean Carfax
I will pull it here in a bit. More about timing and location. Carfax can answer a couple of questions such as: How long has the dealer had this car? Could it have had flood damage immediately prior to trade in and it just has not shown up? Did this car go through an auction? Where was car located prior to trade in or auction? Was this an area that got flooded and etc. Its a long shot, but you never know.

Evidence of water damage can be remedied quickly if not too, too bad. The problem is lingering after effects on electrical? Then again, the car could be perfect and just a weird ECU or battery issue.
Old 12-28-2019, 01:14 PM
  #18  
docdrs
Rennlist Member
 
docdrs's Avatar
 
Join Date: Jun 2010
Location: Ontario, Canada 2011 C4S
Posts: 1,157
Received 72 Likes on 48 Posts
Default

I would ask what specifically happened, what codes. I would want a printout before moving forward. It must be throwing codes for a reason. I do remember when my HPFP went it was driving fine and then wham, reduced engine power and it ran like crap, maybe it’s something simple like that. Good luck
Old 12-28-2019, 01:22 PM
  #19  
wormwood
AutoX
Thread Starter
 
wormwood's Avatar
 
Join Date: Dec 2019
Posts: 14
Received 0 Likes on 0 Posts
Default

They took it in on a trade from a known owner. Texas based (Dallas) with four owners.
Old 12-28-2019, 01:40 PM
  #20  
PV997
Three Wheelin'
 
PV997's Avatar
 
Join Date: Jul 2019
Location: Southern California
Posts: 1,804
Received 1,514 Likes on 648 Posts
Default

Originally Posted by wormwood
I woke up this morning excited to pick up my first Porsche (2009 997.2 S). However, when I called to schedule a time for the pickup at an independent shop they informed me that the while getting the car ready for delivery the ECU started alerting some codes. They tried to work on the codes and in the process “got locked out.” They have sent the ECU to the dealer to have them unlock and repair it. So now I’m sitting at home without my beloved first Porsche questioning what the heck is going on. Is this a big issue? Should I run from the car? Please help.
First off, I'd like to know what they noticed in the first place. Did the dashboard display show an error and if so what was it? Did they try to fix something in response to this?

If there was no dashboard notification, why were they monkeying around with the ECU in the first place? They would never known the ECU was "alerting some codes" (not sure what that means) unless they were trying to read them. So why were they reading the ECU, did they suspect something was wrong? It's very common for the ECU to have stored error codes due to dead battery faults particularly after sitting on a dealer lot for a while. So did they see old stored faults or was something faulting right then and there?

As to the ECU "locking up" what do they mean by that? It's not like when you put in the wrong password and your account gets locked out. What exactly were they doing, why were they doing it, and what specifically happened to the ECU? Was everything else still functioning? Were they just not able to talk to the ECU or is it DOA? Would the car start once this happened? What made them think they had to remove the ECU? Are they replacing the unit, reprogramming it, or maybe just resetting it? The last two could have been done with the ECU in the car.

Perhaps something is being lost in translation but I would be very concerned by the vague description you are getting. I'd want to know exactly everything that happened, the records from the ECU reads, and a specific explanation for everything they have done up to this point.

Last edited by PV997; 12-28-2019 at 02:05 PM.
Old 12-28-2019, 02:09 PM
  #21  
wormwood
AutoX
Thread Starter
 
wormwood's Avatar
 
Join Date: Dec 2019
Posts: 14
Received 0 Likes on 0 Posts
Default

Originally Posted by PV997
First off, I'd like to know what they noticed in the first place. Did the dashboard display show an error and if so what was it? Did they try to fix something in response to this?

If there was no dashboard notification, why were they monkeying around with the ECU in the first place? They would never known the ECU was "alerting some codes" (whatever that means) unless they were trying to read them. So why were they reading the ECU, did they suspect something was wrong? It's very common for the ECU to have stored error codes due to dead battery faults particularly after sitting on a dealer lot for a while. So did they see old stored faults or was something faulting right then and there?

As to the ECU "locking up" what do they mean by that? It's not like when you put in the wrong password and your account gets locked out. What exactly were they doing, why were they doing it, and what specifically happened to the ECU? Was everything else still functioning? Were they just not able to talk to the ECU or is it DOA? Would the car start once this happened? What made them think they had to remove the ECU? Are they replacing the unit, reprogramming it, or maybe just resetting it? The last two could have been done with the ECU in the car.

Perhaps something is being lost in translation but I would be very concerned by the vague description you are getting. I'd want to know exactly everything that happened, the records from the ECU reads, and a specific explanation for everything they have done up to this point.
They were prepping the car for delivery and getting the state inspection when they saw the codes. They have a computer in house, but we’re unable to reset the codes so they need to send it out to someone else that has a different computer to flash it “as if it rolled right out of the factory”. They say it’s happened before, but is rare (twice in the last 100 cars).

I drove the car multiple times and there were no warning lights and no issues at all and it’s in pristine condition. They did have to jump the battery, because it had been sitting in inventory for some time. I’ve asked for the codes.

The team at the dealership has been great to work with it, not pushy at all and professional.
Old 12-28-2019, 02:16 PM
  #22  
Doug H
Nordschleife Master
 
Doug H's Avatar
 
Join Date: Mar 2003
Location: Destin, Nashville, In a 458 Challenge
Posts: 5,128
Received 904 Likes on 532 Posts
Default

Dead or weak battery can cause unusual codes.
The following users liked this post:
wormwood (12-28-2019)
Old 12-28-2019, 02:20 PM
  #23  
wormwood
AutoX
Thread Starter
 
wormwood's Avatar
 
Join Date: Dec 2019
Posts: 14
Received 0 Likes on 0 Posts
Default

Originally Posted by Doug H
Dead or weak battery can cause unusual codes.
They didn’t get a screen grab, but were all random for different sensors. Not pertinent to anything wrong with the vehicle, just random codes that the computer was reading incorrectly.
Old 12-28-2019, 02:25 PM
  #24  
Doug H
Nordschleife Master
 
Doug H's Avatar
 
Join Date: Mar 2003
Location: Destin, Nashville, In a 458 Challenge
Posts: 5,128
Received 904 Likes on 532 Posts
Default

Originally Posted by wormwood
They didn’t get a screen grab, but were all random for different sensors. Not pertinent to anything wrong with the vehicle, just random codes that the computer was reading incorrectly.
Probably a lot of can bus codes. May be totally cool. They inability to erase could be just difficulty communicating with ECU depending upon why disagnoostic tool they are using. Dealer should have no problems. This could all be for not.
The following users liked this post:
wormwood (12-28-2019)
Old 12-28-2019, 02:29 PM
  #25  
PV997
Three Wheelin'
 
PV997's Avatar
 
Join Date: Jul 2019
Location: Southern California
Posts: 1,804
Received 1,514 Likes on 648 Posts
Default

Originally Posted by Doug H
Dead or weak battery can cause unusual codes.
It absolutely can, through it shouldn't require the ECU to be reprogrammed. Hopefully it's just one of those glitches and not something more serious. If the car doesn't come with a warranty you might want to push for a free sixty day warranty (or something like that) in case there is actually an intermittent issue with the ECU hardware itself. A new ECU is $1100 from Sunset.

https://www.sunsetporscheparts.com/o...g2LWdhcw%3D%3D
The following users liked this post:
wormwood (12-28-2019)
Old 12-28-2019, 03:25 PM
  #26  
wormwood
AutoX
Thread Starter
 
wormwood's Avatar
 
Join Date: Dec 2019
Posts: 14
Received 0 Likes on 0 Posts
Default

11

Last edited by wormwood; 12-28-2019 at 05:23 PM.
Old 12-28-2019, 08:28 PM
  #27  
Petza914
RL Community Team
Rennlist Member
 
Petza914's Avatar
 
Join Date: Oct 2007
Location: Clemson, SC
Posts: 25,898
Received 6,509 Likes on 4,145 Posts
Default

Before reading through all the responses, I was thinking this could simply be a weak or dead battery.

​​Proceed cautiously.
The following users liked this post:
wormwood (12-30-2019)
Old 12-30-2019, 12:38 AM
  #28  
eddieb4
Rennlist Member
 
eddieb4's Avatar
 
Join Date: Feb 2014
Posts: 1,763
Received 200 Likes on 118 Posts
Default

WALK ...
The following users liked this post:
wormwood (12-30-2019)
Old 12-31-2019, 08:28 PM
  #29  
wormwood
AutoX
Thread Starter
 
wormwood's Avatar
 
Join Date: Dec 2019
Posts: 14
Received 0 Likes on 0 Posts
Default

Thank you for the feedback. I walked on the car. Probably saved me massive headaches. I found a clean car in Florida and I’m going to pick it up and drive it back with my son this weekend. Better result all around. You guys are great!
Old 12-31-2019, 09:10 PM
  #30  
ccdoggy
Intermediate
 
ccdoggy's Avatar
 
Join Date: Oct 2016
Location: Minnesota
Posts: 26
Received 4 Likes on 4 Posts
Default

Originally Posted by wormwood
Thank you for the feedback. I walked on the car. Probably saved me massive headaches. I found a clean car in Florida and I’m going to pick it up and drive it back with my son this weekend. Better result all around. You guys are great!
Great Decision. Have a great trip and enjoy the drive back!


Quick Reply: Advice on 997.2 ECU



All times are GMT -3. The time now is 08:27 AM.