APR Stage 2 tune issues B8.5 6MT

[OE24]

Finally got the APR stage 1 and stage 2 tune with 91,93,100,e85 files for my 2014 Audi A4 B8.5 Quattro 6MT. I have a turbo back quad exhaust from apr, carbonio intake, sprint booster and billet diverter valve. Sprint booster is set to most sensitive setting. Stock clutch, car has about 28,000 miles.

I decided to put 100 octane gas once I ran out today so I can test out the program. I switched it successfully and everything was running great for hours. I reach a stop light and car was idling fine, rpms were normal, ac was off. I took off in first shifted at about 3200 and then hit it in second to about 4000-5000 and all of a sudden the car just stopped, CEL and esc came on and the car just was unresponsive when the accelerator pedal was pressed. The engine was rumbling at an awkward tone so I immediately turned it off. I must mention that the stabilization control error came on and said see owners manual, tpms sensor also went off. It's like the car was in limp mode, very odd.
I turned the car back on and it was fine, only light remained was tpms and I reset it in the mmi. The car took off just fine and I shifted through all gears successfully hitting about 100+, no issues. I haven't recreated the issue.

Has anybody experienced something like this before? It has to be something with the tune cause this never happened prior to it. Any feedback is much appreciated. Thanks ahead.

UPDATE: I checked codes via vagcom and no codes were present. Drove it again and tried to recreate the issue but it didn't occur.

[Townending]

This happens to me about once a month or two and only E85 which is similar to your 100 octane map. If you pull the codes while all this is happening, you will see a code for no communication to the ECU. Restarting the car always fixes the issue for me, but it never stores the code. I have never been able to purposely replicate the issue, seems to be a random event. I've had my car reflashed and it did not fix the issue. I just learned to live with it.

Personally I wouldn't worry about it until it becomes a more common issue or is easily replicated.


But hey, that sudden jerk forward as all power is lost after being full throttle is something else. haha

NOTE: If you pull the codes while the car is running in the "limp" mode (I say limp mode even though you literally can't accelerate at all), you will probably have a code for P0606 : Loss of communication to ECU.

2/16/15 - 1st Flash : Stage 1 - Never had any issues
6/3/15 - 2nd Flash : Stage 1 - This is when the issue started for me
2/14/16 - 3rd Flash : Stage 2 - Issue has continued

[goreckless]

First and foremost, 6MTs aren't compatible with E85. Do not put it in your car!

As for the issue, this could be because the car saw too much slip and cut power. Would you describe it as feeling like the car is hitting a wall? I think @adamazing has experienced this. Try turning ESC off next time and you shouldn't experience it.

[OE24]

My apologies I actually do not have an e85 file it is stock, 91,93 and 100 octane files.

I was able to recreate the issue one more time and yes it was like hitting a wall. I took your advice and turned ESC off, and now it works great. Thank you.

Question. Why wouldn't my car be compatible with e85? Obviously, I do not have the file but I thought that the silver intake manifolds are the flex fuel models which can take any fuel as long as you have some specific tune.

[Townending]

When you recreated the issue, did the engine start running rough again accompanied by the CEL and stabilization/tpms faults?

As for you're E85 compatibility, what engine code is your engine (CPMA, CPMB, CAEB?) and also does it have the silver/metal intake manifold with the 5th injector? The consensus is that only 2013+ A4's with the 8-Speed Auto have the capability for E85, where as the 6MT does not.

[Project Quattro]

My apologies I actually do not have an e85 file it is stock, 91,93 and 100 octane files.

I was able to recreate the issue one more time and yes it was like hitting a wall. I took your advice and turned ESC off, and now it works great. Thank you.

Question. Why wouldn't my car be compatible with e85? Obviously, I do not have the file but I thought that the silver intake manifolds are the flex fuel models which can take any fuel as long as you have some specific tune.

When you recreated the issue, did the engine start running rough again accompanied by the CEL and stabilization/tpms faults?

As for you're E85 compatibility, what engine code is your engine (CPMA, CPMB, CAEB?) and also does it have the silver/metal intake manifold with the 5th injector? The consensus is that only 2013+ A4's with the 8-Speed Auto have the capability for E85, where as the 6MT does not.

^ This, the older cars and B8.5s with a manual don't have the 5th injector which allows for E85.

[goreckless]

You could probably check your gas cap too. It would say it in there if its capable.

[Townending]

You could probably check your gas cap too. It would say it in there if its capable.

My car is E85 compatible but does not have this sticker.

[briansubsist]

Glad I'm not alone. I had the stage 2 installed three days ago and this has happened to me twice. My traction control was turned off. Did anybody find a resolution for this? I have a 2014 A4 6mt.

[Townending]

Oddly enough, my car has not had this happen recently. It happened once about a week after stage 2 flash (2/14/16) and hasn't happened since. The only thing I have changed is coilpacks, but I don't think they are related.

[briansubsist]

Nah I don't think so either. Although I'm sure it's still a good idea and I'll probably do the same before too long. I did learn there are two modes on traction control. Partly off and totally off. I did a couple decent pulls with it 100% disengaged and didn't have any issues.

[burg3ngold]

I have had this happen twice to me so far since getting flashed to Stage 2 on 7/2/2016.

First time it was on the night of 7/2

Second time was today on the way to work 7/12

Going to run the codes when I get home and let you guys know what codes I have.

[Party_Marty]

I have had this happen twice to me so far since getting flashed to Stage 2 on 7/2/2016.

First time it was on the night of 7/2

Second time was today on the way to work 7/12

Going to run the codes when I get home and let you guys know what codes I have.

APR right? This makes me wonder if APR takes account for maintaining drive-ability when it comes to situations when you want TC and such...

[Ang1dust]

Increasing pressure to the engine also increases the pressure inside the engine, PCV is known to fail on our cars. Its hard to check when its intermittent, i can only tell you if the pcv is completely bad that if you take the pipe off there should be suction and it will run badly. As many point out that if you go stage 2 you are increasing pressure inand out of the engine causing the PCV to pour more oil and blow by back into the intake. I know its not cheap for a fix that may not fix it but it will in turn keep your engine much cleaner. I would reccommend the cheapest one i can find at:

http://www.uspmotorsports.com/Audi--...Kit-Black.html

Also it wont throw a code if the PCV malfunctions or if you take the pcv off to test it and runs bad. The ecu wont throw a code if you take off your intake either. I ran the car before with my turbo charge pipe blown off (accidently left it untightened after an upgrade) and drove it back home. Fixed it and no CEL ever came on. Just food for thought.