please help me understand what the crap is going on? (wastegates) : Resolved!!!

[SHOdded]

That is kinda good, but tells you octane is a bandaid.  Was OAR Learned before you put the hammer down?

 

[ZSHO]

Check the Engine Ground strap wire for corrosion ! Z
OBD Plugged in?

https://www.scantool.net/forum/index.php?topic=6480.0

PCM FRIED(Well Done)

https://www.ecoboostperformanceforum.com/index.php/topic,6556.0.html


Ford PCM Software Reflash Procedure + Labor!
! No longer available

 

[ZSHO]

FYI- The PCM related to your vehicle is Tear Tag YYS2 !  Z

Engine Computer Programmed/Updated 2012 Ford Taurus BA5A-12A650-NC YYS2 3.5L

$217.49

Tear Tag is the four Digit Code pertaining to your Module Build Data (AS-BUILT)

https://www.motorcraftservice.com/AsBuilt/Details

https://www.ebay.com/itm/Engine-Computer-Programmed-Updated-2012-Ford-Taurus-BA5A-12A650-NC-YYS2-3-5L/362155475105?fits=Year%3A2012%7CMake%3AFord%7CModel%3ATaurus%7CEngine+-+Liter_Display%3A3.5L&epid=24009197205&hash=item54522600a1:g:NUAAAOSw9idaBhAy&vxp=mtr

 

[ZSHO]

If anyone is interested in finding the exact fit module pertaining to your specific vehicle just go under https://www.motorcraftservice.com/ and then click under Free Resources and click QUICK GUIDES and Scroll down the page to MODULE BUILD DATA(AS BUILT)USING YOUR VIN NUMBER TO OBTAIN AS-Built Data!  Z 

13-SHO PCM MODULE would be TEAR TAG GWR1

Great info can be found under Free resources.  Z

https://www.motorcraftservice.com/

! No longer available

 

[TopherSho]

That's a great link!

I have my tuner in my hand.  i did the pid validation again .. built a copy pf brads log.  added missfires. 

I am afraid to look really.  if its not misfires i have to make a 600$ guess on option-a or option-b and live with the results

 

[StealBlueSHO]

I mean... I wonder if the LMS tuner I have will work on yours. They require the SWPN so I am not sure if their tunes are tied to that AND the strategy...

I would honestly revert back to stock, drive it for awhile, and see if the issue persists. If it goes away, and you are interested to see if the LMS tune is a better fit, then I will ask them if you can use mine to verify...

Assuming that option A for $600 was to try LMS...


Sent from my iPhone using Tapatalk

 

[TopherSho]

FYI- The PCM related to your vehicle is Tear Tag YYS2 !  Z

Engine Computer Programmed/Updated 2012 Ford Taurus BA5A-12A650-NC YYS2 3.5L

$217.49

Tear Tag is the four Digit Code pertaining to your Module Build Data (AS-BUILT)

https://www.motorcraftservice.com/AsBuilt/Details

https://www.ebay.com/itm/Engine-Computer-Programmed-Updated-2012-Ford-Taurus-BA5A-12A650-NC-YYS2-3-5L/362155475105?fits=Year%3A2012%7CMake%3AFord%7CModel%3ATaurus%7CEngine+-+Liter_Display%3A3.5L&epid=24009197205&hash=item54522600a1:g:NUAAAOSw9idaBhAy&vxp=mtr

? i plugged in my VIN and it came up different.  ?

Module Build Data (As-Built)
VIN 1FAHP2KT3AG106362
Tear Tag DJC5
Vehicle Data 1DF2 FFFF FF0C

 

[TopherSho]

No misfires.  the tranny log with misfires was a bad reading. and it was  a classic bad run.  end of third was choppy stutterer and full of random power drops.

well s***.

-gamble on a ECU as the last money i can spend
-gamble on livernois as the last money i can spend
-save 600$ and go stock and sell it in 9 months.

i'm off for the night. time to drink a few round and get away from this mess.

Thank you for the offer SBS.  I will consider it.  I am going to go back to stock and drive it for a few days.  Lets see if the issue stays 'gone' for that longer time frame.

 

[ZSHO]

Here's the exact PCM you need! so best of luck and think we all need a Drink! LOL.  :beer2:  Z
Inspect the PCM for leaks,corrosion on harness connector and proceed from there!  Z

Engine Computer Programmed/Updated 2010 Ford Taurus AA5A-12A650-DF DJC5 3.5L

PCM--DJC5   - $217.49 + Free Shipping!

https://www.motorcraftservice.com/


https://www.ebay.com/itm/Engine-Computer-Programmed-Updated-2010-Ford-Taurus-AA5A-12A650-DF-DJC5-3-5L/352206668311?fits=Year%3A2010%7CMake%3AFord%7CModel%3ATaurus%7CEngine+-+Liter_Display%3A3.5L&epid=18009197536&hash=item5201274217:g:Eo8AAOSwsYpaBhIV&vxp=mtr

 

[StealBlueSHO]

I still think he needs to run that stock tune for a bit.... but talk about persistence Z!!!!! Guys like ZSHO are the reason this forum is the best one out there. Remind me to buy you a drink (even if it’s lemon polar) when I see you at Cecil this coming season.


Sent from my iPhone using Tapatalk

 

[ZSHO]

I find it coincidental that the OP issues started right AFTER Having the windshield replaced! Dunno :hmmm:  Bad Seal perhaps!  water intrusion inside the PCM! 
TOL since your on your last limb that's all!  Z


https://www.ecoboostperformanceforum.com/index.php/topic,8568.90.html

 

[TopherSho]

I am going to run a few test runs today.  I am back on stock.  i will probably have time to pull open the cowl today and pull the ecu plugs.

I had no idea the pcu is literally in the ''rain trough exposed to the weather at all times.'' .. what a genuinely stupid place to put it. I can SEE the ecu plugs with the hood up.. it must be soaking wet, cold constantly. 

 

[TopherSho]

Here's the exact PCM you need! so best of luck and think we all need a Drink! LOL.  :beer2:  Z
Inspect the PCM for leaks,corrosion on harness connector and proceed from there!  Z

Engine Computer Programmed/Updated 2010 Ford Taurus AA5A-12A650-DF DJC5 3.5L

PCM--DJC5   - $217.49 + Free Shipping!

https://www.motorcraftservice.com/


https://www.ebay.com/itm/Engine-Computer-Programmed-Updated-2010-Ford-Taurus-AA5A-12A650-DF-DJC5-3-5L/352206668311?fits=Year%3A2010%7CMake%3AFord%7CModel%3ATaurus%7CEngine+-+Liter_Display%3A3.5L&epid=18009197536&hash=item5201274217:g:Eo8AAOSwsYpaBhIV&vxp=mtr

Thank you sir.

 

[TopherSho]

I find it coincidental that the OP issues started right AFTER Having the windshield replaced! Dunno :hmmm:  Bad Seal perhaps!  water intrusion inside the PCM! 
TOL since your on your last limb that's all!  Z


https://www.ecoboostperformanceforum.com/index.php/topic,8568.90.html

Anything is possible.. I need to complete my runs today stock and see if I feel anything.  the problem I am concerned with is in stock the system may not be 'stressed enough' to show the behavior which puts me back into buying random parts.

 

[TopherSho]

I am about 98% the Stock tune is not having the issue. 

made 3 runs today well into 4th gear 

1 run from last night (but not all the way through 3rd.)

I am not feeling it at all.  any anything i did feel is probably super crazy tinhat placebo at this point. 

I did not datalog it.  I didn't have it with me.

I cannot imagine this is ECU related.  it only seems to occur in higher performance modes, it should be a issue at all times..
I cannot think is is spark related either,  rpms are rpms.  if the spark was an issue it would be across the board at 6200 rpm
I cannot think it is ground related either,  same thing,  it would be a issue at all times.
it is not fuel related.  i ran 96+ octane with only slightly better results
I do not think it is knock/timing related.. knock sensor is working and at 96 octane we did not see any issues.
I do not think it is .. Fuel pressure is fine and always has been.


??????????????????????????????????????????????????????????????????????????????
?Could be valves under much higher cylinder pressure?
?Could be something else non engine internal is not tolerating 15 pounds of boost.?
??????????????????????????????????????????????????????????????????????????????

I cant explain the jitter on the logs,  it FEELS like a dramatic drop in power.  then it spikes back.  ?the wastegates are dumping rapidly? then closing off? maybe that IS the cause of the jitter..  this makes me want to run a high performance LOW boost tune. 

@AJP Have you ever built a High performance 13-pound tune?  The hand held on stock never shows more than 11 pounds.. i'm and curious what happens when someone builds a low boost high spark timing tune.

 

[ajpturbo]

Sure have we can try

 

[StealBlueSHO]

Would that be working around the problem? Lots of guys on here running 14+ PSI tunes without an issue.. not trying to be negative Nancy...

Maybe developing a mildly aggressive tune targeting 13psi to see maybe if its the tune parameters? dunno.. curious to see what happens.

 

[TopherSho]

Would that be working around the problem? Lots of guys on here running 14+ PSI tunes without an issue.. not trying to be negative Nancy...

Maybe developing a mildly aggressive tune targeting 13psi to see maybe if its the tune parameters? dunno.. curious to see what happens.

I agree that there are tons of others on the same firmware and platform,  but I am out of ideas besides really bad ones like valves.  And I have already replaced tons of hoses, the solenoid, fixed the overboost issue. 

If it is a physical issue i'm lost...

I had boost to spare and still do,  so its not a 'loss of boost',  the wastegates are not 100% closed or open.. its not overboosting..

/flumoxxed/

EDIT :: which puts me back to carrying forward some form of corruption on the SCT tuner.  sigh.  My last thought is maybe i will put rev-11 on.  Rev11 was a really *EARLY* good tune before I got aggressive with shift points, tq-management etc.

 

[TopherSho]

Sure have we can try

Let's do it.  92 octane pump gas, 13 pounds.  Can I ask a HUGE favor?  Lets build it from scratch and not based on modifying any of my previous files? 

I remember that around revision 13 we had some crazy issues with TQ management until we went clean-sheet on a tune.  Since the handheld is updated maybe this can help..

 

[TopherSho]

for S&G's I went back to build 11 of the tune.. ancient.  Much less pronounced, but still occurs... as soon as we get off of 15 pounds the issue drops in severity greatly.

What Oil should i be running.. ? I have been letting FORD replace the oil.