I had a violent hi speed 6,000+ rpm wot power cut out tonight like maybe from overboost? Service light went on and I pulled a P0243 (turbocharger wastegate solenoid 'a' malfunction). I had the BBX full turbo and AMS down pipe installed last week but tonight is the first time I had any problems and it was repeatable, the wether was colder than usual (for SoCal) at 50*f.

BBX Full Turbo (close to "red" specs?)
AMS "Widemoth", RRE resonated test pipe, MXP cat back exhaust. DW1000 injectors.
"conservative" EcuFlash tune by Pete at WORKS Motorsports
27.8 psi holding mostly to redline, maybe 25+ by 7500.
50*f, hi humidity, elev ~80ft.
Ca91 octane

 

I could be wrong, but I believe that is the code for when you go over the boost limit tables for the specified time. I'm slightly surprised WORKS would let that slip, but it could just be the cold weather.

 

Sounds right, I'm starting to read merlin's tuning guide (which you hosted, thanks), what should I look for?

 

If you exceed the value in the "Boost Limit" table for more than the time specified in "Boost Cut Delay Timer" that is the most likely situation. It should be in the "Turbo" section of EcuFlash. There are quite a few threads on this if you look around, especially from the CT9A guys.

 

Ah yes, I can do a better search now I That have a little info. I seached both forums for "p0243" last night and got zilch! ...First I must learn to use EcuFlash.

Thank You

 

I took it out for a short trip to the store tonight, made one wot pass through 1st gear in "sport" auto mode and it ran perfectly , made a "bang" when it auto shifted the 1-2 shift just like power shifting a GST only faster, cool!

It was 8*f warmer (58*) tonight and lower humidity so I'm guessing, GUESSING that it is temperature related, still temperature should not be that critical on a "conservative" tune.

I'm so mired in ROM's, XML's, definition files, unrecognized definions, copied definitions, inherited definition, different permissions, and just generally so confused that I still have not even viewed a table much less logged anything. I'm sure it will come together and make sence once I start actually using EcuFlash.

 

when u get to see the tables, turn off boost error correction.
imho, for the gas quality that you're getting the boost is a little too high, i'd turn it down a bit.
might be a good idea to pop the hood and have a look at your wga + hoses

 

take the car back to your tuner..

I would say that P0243 is just a side affect not the cause...

you probably hit boost limit..

 

Thank you Tephra, and thanks for everything you do for the tuning comunity

I shant be taking it back to WORKS thank you, not only are they 400mi away they took way to long to R&R my SST (over 3 months!) and Pete (the owner and tuner) only works a couple days a week and is hard to contact so I don’t try! I am also getting the p050a code (something to do with cold timing) when I do a cold start in the am. I guess I’ll wait for CobbSocal to open (end of Jan.?) and let Jon retune it, I hope he will still do OpenEcu now that he is working for Cobb, if not maybe RRE.

Embarrassed to admit that I am totally flummoxed with EcuFash , after about 8 hours of flailing around with it I am still unable to figure out how to open up a single table or graph for veiwing! I am reinstalling EcuFlash v142.2495 this am and starting over…again...I will upload the rom from my ecu again, save it without definitions this time (EcuFlash cannot find a definition file and I'm not sure if I should copy/inharit and which file to copy from?), pull the romid with XVI23 (55585558) or with notepad (55580005) why do they show different id for the same rom file? And edit the definition file 5260015.xml (2008 mt6 is the closest I could find to my 2010 SST) to reference one or both of the romid’s (make two *.xml files?). Then continue to follow Merlins tuning manual and hopefully “magic” will happen.

AP was much less convoluted, I just opened up ATRace, loaded the file, and then pulled up a table ready for editing; I chose to change to open port ‘cause I was told it was more capable, had better logging capability (AP logging is crap imo) and it had the “Tephra Mod” available! I am not giving up, not yet anyway, but I am close, EcuFlash expects a certain skill set that I apparantly lack.

Thanx,

Paul

 

I got it! Now the whole “Current Rom Metadata” screen is populated and I can view a familiar looking table and see what WORKS did, I’m guessing I can edit it also but I have not tried yet. Not sure what I did right this time and hopefully I have the right definitions for a 2010 USDM MRT. What PIA but it's all downhill from here on out

 

I still do OS, dont worry Paul.

-Jon

 

Your the man!

 

I just started figuring out how to use EcuFash today, my "Boost Cut Delay Timer" is set at 1000ms, probably should be 2000ms; I will search the forum for more info before changing anything.

2010 MR-T (SST)
OEM intake w/dropin
BBX full
AMS DP
RRE Rally test pipe
MXP II CBE
DP 1000 injectors
BlaqOps single pump
WORKS tune using OP
Green relay (that’s it, it MUST be the fuel relay!)

 

Unless you are above 319 load, then leave the timer alone.

This is what I would do:
1) increase timer to 10000
2) do a 4th gear pull - make sure your boost is where you want it..
3) check the loads for each rpm in the boost limit table
4) get the load from the log - add 20pts and put that in the boost limit table
5) reset the timer to 1000

if your max load is above 319 - then you have no option but to increase the timer - and effectively disable the boost limit function...

 

good suggestion tephra but i think it's too advaced for op aas he is new to the tuning world. no offense but what if he's overboosting due to other reasons and he go set it up and do a couple of pulls and then kaboom as he is boosting quite high for the quality of gas that he's filling up.

just my 2 cents. better to be safe than sorry.

op i'd highly suggest you to take yr ride back to your tuner and let him solve it for you as you paid for the tune and now there is a problem with it before you modify the tune and your tuner can say oppsss sorry i won't cover anything as you've "messed" with the tables.