No throttle response (Seat Leon Cupra 1.8T)

[mithianme]

SEAT Leon Cupra 1.8T - (AUQ)
Hi there, I've been having trouble with my Cupra recently. Out of no where the throttle just vanished, no response whatsoever.

TBS, APS, LAMBDA SENSORS

• I looked under the car and saw 02 sensor wiring dangling down and it appeared as if it had been ripped apart.
• I have replaced the throttle body and the accelerator pedal, however, still nothing.
• A re-learn was also done on the throttle body but still nothing.
• I'm going to replace the 02 sensors tomorrow to see if that remedies the issue but I very much doubt it.
• After the 02 sensors, maybe another diagnosis, see if it throws anymore codes + another relearn/calibration/adaption.

Has anyone experienced anything alike this?

ECU

• Pulled ECU out to look for any visible burning or anything, was clean and looked fine.
• Car runs perfectly fine, no issues. Everything is operational, would it be the ECU internally?

DIAGNOSIS
I have had it diagnosed and the error codes are the following:

• EPC light and traction control light permanently on
• P1297 - Throttle valve pressure drop
• P1631 - Accelerator pedal position sensor: signal too high
• P1634 - Accelerator pedal position sensor 2: signal too high

Image of the 02 sensor wiring -

Any form of help would be greatly appreciated, thank you!

 

[Battoussai]

Hi. Have you checked the accelerator sensor:

1J0907651A​

Also, see if this helps:
Ross Tech Calibrations

 

[mithianme]

Hi. Have you checked the accelerator sensor:

1J0907651A​

Also, see if this helps:
Ross Tech Calibrations

Hi there,

There is no codes on diagnostic tool for this so wouldn't assume it would be an issue
Out of curiosity where would the 'accelerator sensor' be found in engine bay/drivers side?
I have replaced the accelerator pedal and the sensor on it, throttle body and sensor on it, 02 sensors, still nothing.

Going to perform a re-learn/calibration today, see if it fixes the issue.

 

[MoToJoJo]

Do the 02 sensor wiring. RossTech suggest doing that before anything else

 

[mithianme]

Do the 02 sensor wiring. RossTech suggest doing that before anything else

Hi there,

Done the 02 sensor wiring, wiped codes. P1631 and P1634 still there no matter what.
Really lost.