Going DP fail. Car with TB and fuel codes and EPC light.

[Renarl]

Hello guys!

I have a problem with my car and I hope to get some help and find a solution with your help.
I was running a stage 1 on my car and had no problems. Decided to go DP and chose a 207mm crank pulley, 82mm TB, Autotech fuelpump upgrade, APR coils, new sparkplugs, CWA100, custom intake pipe, merc HX.
The shop installed everything and told me the car throws an EPC light. I considered this perhaps normal for the moment since we changed the TB, etc. I went over and changed to proper tune.
This did not change anything, the car is in limp mode, still has the EPC light and has the following codes:

6518 - Throttle Position Sensor (G69)
P0123 - Signal too high

6532 - Throttle Actuator (J338)
P1568 - Mechanical failure

6237 - Fuel Rail/System Pressure
P0087 - Too Low

7814 - Coolant Pump for Intercooler
P190C - No Signal - This came on after CWA100, pins should be fine. There is "no signal" error but the pump is running (made to run 100% of the time)

9667 - EVAP System Pressure Sensor - I actually have had EVAP issues before but it has not affected anything. If I remember correctly I previously had an EVAP system leak error.
P0451 - Implausible

My guess is the last two do not affect the issues I have. What is your take on what might be going on here? I am not mechanically smart so I only know what the shop has told me and what I have read here. Maybe someone who has upgraded TP and gone the Autotech route can chime in and has seen similar issues?
Is there a chance that they used old TB harness that is causing this or do they not match and this is out of the question? I am asking since the TB came with a new harness so the signal should be ok with it, right?

Fuel issue - bought the Autotech pump a few months ago so hopefully not from the bad old batch that I have read about. Any way to test if the pump is good?

Can one code cause the other (TB issues cause the fuel error and vice versa)?
I had them install the parts since I was hoping it was pretty much straightforward but it never is :)

If you can help, I would be very grateful for any ideas regarding on how to solve this or what I should have the shop do to get to the bottom of this and get the car running as it should.

Thanks in advance,
Renar

[carguy19]

Hello guys!

I have a problem with my car and I hope to get some help and find a solution with your help.
I was running a stage 1 on my car and had no problems. Decided to go DP and chose a 207mm crank pulley, 82mm TB, Autotech fuelpump upgrade, APR coils, new sparkplugs, CWA100, custom intake pipe, merc HX.
The shop installed everything and told me the car throws an EPC light. I considered this perhaps normal for the moment since we changed the TB, etc. I went over and changed to proper tune.
This did not change anything, the car is in limp mode, still has the EPC light and has the following codes:

6518 - Throttle Position Sensor (G69)
P0123 - Signal too high

6532 - Throttle Actuator (J338)
P1568 - Mechanical failure

6237 - Fuel Rail/System Pressure
P0087 - Too Low

7814 - Coolant Pump for Intercooler
P190C - No Signal - This came on after CWA100, pins should be fo. There is no signal error but the pump is running (made to run 100% of the time)

9667 - EVAP System Pressure Sensor - I actually have had EVAP issues before but it has not affected anything. If I remember correctly I previously had an EVAP system leak error.
P0451 - Implausible

My guess is the last two do not affect the issues I have. What is your take on what might be going on here? I am not mechanically smart so I only know what the shop has told me and what I have read here. Maybe someone who has upgraded TP and gone the Autotech route can chime in and has seen similar issues?
Is there a chance that they used old TB harness that is causing this or do they not match and this is out of the question? I am asking since the TB came with a new harness so the signal should be ok with it, right?

Fuel issue - bought the Autotech pump a few months ago so hopefully not from the bad old batch that I have read about. Any way to test if the pump is good?

Can one code cause the other (TB issues cause the fuel error and vice versa)?
I had them install the parts since I was hoping it was pretty much straightforward but it never is :)

If you can help, I would be very grateful for any ideas regarding on how to solve this or what I should have the shop do to get to the bottom of this and get the car running as it should.

Thanks in advance,
Renar

You have to do a throttle body adaptation with VCDS or it won't run right. I would start there.

The fuel pressure being low has to be the fuelpump upgrade or install. If you are running pump gas you didn't need to change the pump.

[Fresh.S4]

make sure the toon and tb match (same with wire harness)

[Renarl]

Thanks guys for the replies!
The Autotech was installed for occasional E40 once everything is working properly.
The tune matches - iABED 82mm TB and harness and Jackal tune

Can anyone answer this one please:

1) can the shop have accidentally used the original harness when installing TB?
2) I also have the Jackal harness (purchased it separately just in case) in addition to the iABED harness - should they both work?

We will do the TB adaptation, good advice thanks! Didn't know it would throw the codes without doing it.
Any way to test if the Autotech fuel pump is at fault for throwing the fuel code?

[Fresh.S4]

you can try swapping the harness yourself,,, ya might need to remove the intake pipe for better access but its right there easy swap.

[f1torrents]

Thanks guys for the replies!
The Autotech was installed for occasional E40 once everything is working properly.
The tune matches - iABED 82mm TB and harness and Jackal tune

Can anyone answer this one please:

1) can the shop have accidentally used the original harness when installing TB?
2) I also have the Jackal harness (purchased it separately just in case) in addition to the iABED harness - should they both work?

We will do the TB adaptation, good advice thanks! Didn't know it would throw the codes without doing it.
Any way to test if the Autotech fuel pump is at fault for throwing the fuel code?

Jokeal tune...
There's your problem.
Didn't even get a chance to drive it and it already destroyed your engine.

Do yourself and your wallet a favor and get that WINOLS hacked together file off there and get a tune from a reputable company.

[Fresh.S4]

oh he has jackal?

isnt it some BS about having to keep a door open for 30min or something?

[carguy19]

You guys don't give up with the Jackal bashing.

I've had 3 different softwares in my B8.5 S4. So I can speak fairly and subjectively about things.

Jackal is by far the fastest, it's not even close.

I found the Jackal to be the smoothest one in my car as well. The APR was almost as smooth, but the Jackal tune is like a stock tune, you don't feel any different behavior in the car when it goes into the territory where the parameters are changed. With the other tunes I felt the difference when it went into the edited maps if that makes sense.

Customer service is second to none with Jackal. You can call the main phone number and get Matt or another team member on the phone to help you with any issue you have. This was huge for me because with my APR tune, the fuel trims were way off in the tune for some reason, and APR made me go to their vendor to get the car looked at and logged 3 times to tell me in the end that nothing was wrong. If I would have listened to them I would have washed the rings out of my motor. I don't know how they could have missed something so simple and obvious.

Why do people hate on Jackal? Because they are less expensive or smaller then the big tuning houses? My car has plenty of miles and 1/4 mile passes on it with no issues and its been solid for me and better in every way than my APR tune was after being the biggest APR fanboy for years. (I've had over 15 cars with APR software and parts in them).

Can someone give valid reasons for why they don't like Jackal? I haven't heard a single one.

[carguy19]

Thanks guys for the replies!
The Autotech was installed for occasional E40 once everything is working properly.
The tune matches - iABED 82mm TB and harness and Jackal tune

Can anyone answer this one please:

1) can the shop have accidentally used the original harness when installing TB?
2) I also have the Jackal harness (purchased it separately just in case) in addition to the iABED harness - should they both work?

We will do the TB adaptation, good advice thanks! Didn't know it would throw the codes without doing it.
Any way to test if the Autotech fuel pump is at fault for throwing the fuel code?

Why don't you call Jackal and get a hand from them if you purchased the tune and parts from them. They should be able to tell you what is going on by looking at logs and data quickly. They are very good from my experience in the past.

[f1torrents]

Its like talking to a brick wall.

Of course they are the fastest..
If you turn off all the safety protocols and just raise values that you don't understand limits too you will reach higher power levels.
The problem is.. He has no idea what he is doing. Yes.. He. One guy.

It's your engine. Do you.

At least others will tell you what he is doing and how horrible it is to your engine. If you are aware and don't care/are fine with it. all the power to you.

The issue is, he never told anyone eh sold the files to what he was doing.
The opposite.. He said all safety's were in place. Lies!

I can open his file in WINOLS and raise some values higer than he has them. all of a sudden I'll go faster.. Until.. BOOM

And yes. It's that easy. Grab a copy of WINOLS and either his actual file or one from the data base which he started from and go from there.

[carguy19]

Its like talking to a brick wall.

Of course they are the fastest..
If you turn off all the safety protocols and just raise values that you don't understand limits too you will reach higher power levels.
The problem is.. He has no idea what he is doing. Yes.. He. One guy.

It's your engine. Do you.

At least others will tell you what he is doing and how horrible it is to your engine. If you are aware and don't care/are fine with it. all the power to you.

The issue is, he never told anyone eh sold the files to what he was doing.
The opposite.. He said all safety's were in place. Lies!

I can open his file in WINOLS and raise some values higer than he has them. all of a sudden I'll go faster.. Until.. BOOM

And yes. It's that easy. Grab a copy of WINOLS and either his actual file or one from the data base which he started from and go from there.

Do you really believe your own bullshit? Seriously?

Nobody is going through the trouble of "turning off safety protocols" in a tune being sold to the public. Especially with how the EPA is clamping down on tuners for emissions and other manipulations in aftermarket software.

Use the search on here and on other Audi message forums, lookup engine failure, there are many of them..... just not any running Jackal tunes, but that must be a conspiracy. Jackals cars are only faster because they set them up to not be safe and blow up> Listen to yourself.... that's something ridiculous to believe, never mind to expect anyone else to believe.

I have over 40K miles and close to triple digit 1/4 mile passes on my car with the Jackal tune. I also have 3 back to back dyno pulls (with logs and wideband) from when I changed over. Nothing is setup unsafely.

Everyone has their own choice and opinion for who they give their business to with tuning and with everything else in life. Jackal is not selling unsafe tunes with the factory safety items turned off, no big tuning house would get away with that. It's your choice to believe that or not to, but think about it logically.

[Whinny SQ5]

Thanks guys for the replies!
The Autotech was installed for occasional E40 once everything is working properly.
The tune matches - iABED 82mm TB and harness and Jackal tune

Can anyone answer this one please:

1) can the shop have accidentally used the original harness when installing TB?
2) I also have the Jackal harness (purchased it separately just in case) in addition to the iABED harness - should they both work?

We will do the TB adaptation, good advice thanks! Didn't know it would throw the codes without doing it.
Any way to test if the Autotech fuel pump is at fault for throwing the fuel code?So just to make sure, you used an iABED throttle body and harness? My spouse bought a used kit from Audizine a few months ago, and it was plug and play. No CEL or EPC. We didn't have to do anything to the tune to make it work either. We are running IE E40 DP (not the upgraded throttle body tune). You could check your harness for visible signs of wear/damage and check for continuity.

As far as your fuel pressure code, I would also say it has got to be your hpfp. We had a similar issue when we installed a 034 upgraded piston on the S5. We would get a code for low fuel pressure at startup. Resolved it by putting an IE upgraded hpfp in the SQ5, swapping the 034 piston into the SQ5's oem hpfp and installing the SQ5's oem hpfp with the 034 piston into the S5. Upgraded hpfp pistons are finicky to install, and you can damage the seals inside the hpfp. You could see about installing a known good used oem hpfp to see if the code goes away.

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[EvolutionArmory]

All you have here is a hardware and software conflict between your throttle body and tune. It is impossible for every TB to work and it might just be an issue of having to swap a couple pins in the harness or adapting it.

Talk to Jackal and ask them if their harness is specifically proven to work with your throttle body.

It’s that simple to fix.

Some of the people who comment in these posts do my head in [emoji1787]


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[EvolutionArmory]

Its like talking to a brick wall.

Of course they are the fastest..
If you turn off all the safety protocols and just raise values that you don't understand limits too you will reach higher power levels.
The problem is.. He has no idea what he is doing. Yes.. He. One guy.

It's your engine. Do you.

At least others will tell you what he is doing and how horrible it is to your engine. If you are aware and don't care/are fine with it. all the power to you.

The issue is, he never told anyone eh sold the files to what he was doing.
The opposite.. He said all safety's were in place. Lies!

I can open his file in WINOLS and raise some values higer than he has them. all of a sudden I'll go faster.. Until.. BOOM

And yes. It's that easy. Grab a copy of WINOLS and either his actual file or one from the data base which he started from and go from there.

I ran over 50 10 second passes this year on what you call the “dangerous tune”. I’m running 10.6’s on a 3.2 pulley ratio. Mid 10’s usually takes a 3.3 or 3.4 pulley ratio with the other tuners. Way more risky to run the same times as me. I’m running as fast as them and sometimes faster with less stress on my motor, less stress on my fuel system and less heat in the supercharger and I’m doing it while still running cats on the car [emoji1787]

You really do believe your own BS and that’s sad. You should join Nate and Javad on the live stream. You’d fit right in like peas in a pod.

Here’s some real numbers for you. 50+ 10 second passes in 7 months. Hundreds of 0-60’s. Over a dozen 7 second 60-130’s. And I’m still on the original 108,000 mile engine. Just shut up already.


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