B8.5 Recent Issues - Help Diagnosing

[burg3ngold]

Hey All - I've had a few issues with my car and I hope to thoroughly document them below to see if we can figure out the problem and get to a fix

B8.5 2.0T A5
37,000 Miles
Outside of Warranty

Modifications and Install Date:
RS Grill (6/3/2016)
RocEuro Intake (6/14/2016)
034 High Flow Cat (7/2/2016)
AWE Touring Exhaust (7/2/2016)
H&R Coilovers & Alignment (7/2/2016)
Stage 2 Tune (7/2/2016)

Issues:

Scenario 1 - The night of the tune + mods
On the night of 7/2/2016 after driving about 4 hours (two 2 hour trips) since picking the car up from NGP (install shop), I was at the top of 2nd gear and the car felt like it hit a brick wall. Pushed forward into the seat belt with immediate power loss. The dashboard lit up like a christmas tree and I put clutch in and idle was shaky at 1k rpm. I saw an error of TPMS showing up on the dash. I pull over and kill the motor, wait a minute, restart. The only error I see is a TPMS exception and I head off with the car seeming to be fine. After about 300 feet the TPMS error goes away. I run the VAGCOM for codes and get the following:

4698 - Function Restriction due to Faults in Other Modules
U1113 00 [032] - -
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Mileage: 59828 km
Date: 2016.07.02
Time: 22:51:33

4624 - Engine Torque Monitor 2
P1335 00 [096] - Control Limit Exceeded
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 59828 km
Date: 2016.07.02
Time: 22:51:32

I search around on the forums and don't find anything in particular. I clear the codes chalking it up to the ECU freaking out after the tune and me driving a bit too hard. Maybe I hit redline (I don't think I did) and I should just chill out. I contacted NGP and they said to clear codes and let us know if it happens again.


Scenario 2 - The re-occurrence
The other day, 10 days later from the first instance on 7/12/2016, I was driving to work and in the car for about 40 minutes just driving normally. I was coming off a ramp and was at about 80% throttle in 3rd gear and about 4k RPM the car felt like it hit a brick wall. Pushed forward into the seat belt with immediate power loss. The dashboard lit up like a christmas tree and I put clutch in and idle was shaky at 1k rpm. I saw an error of TPMS showing up on the dash. I pull over and kill the motor, wait a minute, restart. The only error I see is a TPMS exception and I head off with the car seeming to be fine. After about 300 feet the TPMS error goes away. I run the VAGCOM for codes and get the following:


4698 - Function Restriction due to Faults in Other Modules
U1113 00 [032] - -
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Mileage: 60413 km
Date: 2016.07.12
Time: 11:10:58

2837 - Fuel Rail/System Pressure
P0088 00 [096] - Too High
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 60413 km
Date: 2016.07.12
Time: 11:11:09

10203 - Random/Multiple Cylinder Misfire Detected
P0300 00 [096] - -
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 60221 km
Date: 2016.07.08
Time: 08:12:14

10591 - Cylinder 1
P0301 00 [096] - Misfire Detected
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 60221 km
Date: 2016.07.08
Time: 08:12:28

4624 - Engine Torque Monitor 2
P1335 00 [096] - Control Limit Exceeded
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 60413 km
Date: 2016.07.12
Time: 11:10:57


So from what I can see, the same thing happened twice about 10 days apart. I got two of the same error codes 4698 (Function Restriction due to Faults in Other Modules) and 4624 (Engine Torque Monitor 2) both times; however, I additionally got 2837 (Fuel Rail/System Pressure) at the same time. Looking at the Error I also got a misfire on cylinder 1 a few days earlier on 7/8 that I have no recollection of.

Would love if you guys could help me out here.

Thanks,
KD

[Sgibb16]

http://wiki.ross-tech.com/wiki/index.php/17743/P1335

This tells me that the torque code is probably cause by the fuel issue you are having.

After some quick searches on google seems like its the fuel pressure regulator on the fuel pump is a common issue when the P0088 code is thrown.