SEAT AROSA PROBLEM

[kospoz]

Hi mates my head will explode with my wifes car.Is Seat Arosa 1.0 AUC code and has problem with gas pedal.The vcds said gas pedal problem but i have changed 4 times and the pedal now is from a car without problem and mine pedal is on this car (exchange) and is working very good.Maybe is ecu problem?Any ideas please?

[Ashraf6119]

Can you post your fault code here so we can help you...................Also have you done any work on this car before having this fault............?

[kospoz]

Thanks for your reply my friend the code is 18047/P1639.Regular service only and after 1200 km the fault came out.

[Ashraf6119]

18047/P1639/005689 - Accelerator Position Sensor 1/2 (G79/G185): Implausible Signal Possible Symptoms

Malfunction Indicator Light (MIL) ON
Reduced Engine Output

Possible Causes

Wiring and/or connections faulty
Faulty ECM
Faulty Accelerator Pedal

Possible Solutions

Check Measuring Block Readings for Accelerator Pedal
Check Voltage Signals from ECM to Throttle Pedal (see factory repair manual)
Check Wiring and Connectors from ECM to Accelerator Pedal

Special Notes

There are 2 sensors in the accelerator pedal, both should increase in the same direction as the accelerator is pressed but they have different scales. This means one counts from 0 to 100, while the other one counts from 0 to 50.



Accelerator Position Sensor faults can be caused by issues with the Oxygen Sensor(s) and it's wiring. Please verify this BEFORE replacing the ECM or Accelerator Pedal. Accelerator Pedal failure is very rare.


If you have just done a service and this problem started than you should check the wiring plug on throttle body also try cleaning the throttle body, and relearn the throttle adaptation using Vag-Com also, check your alternator charging rate.........

[kospoz]

18047/P1639/005689 - Accelerator Position Sensor 1/2 (G79/G185): Implausible Signal

Possible Symptoms



Malfunction Indicator Light (MIL) ON
Reduced Engine Output

Possible Causes



Wiring and/or connections faulty
Faulty ECM
Faulty Accelerator Pedal

Possible Solutions



Check Measuring Block Readings for Accelerator Pedal
Check Voltage Signals from ECM to Throttle Pedal (see factory repair manual)
Check Wiring and Connectors from ECM to Accelerator Pedal

Special Notes



There are 2 sensors in the accelerator pedal, both should increase in the same direction as the accelerator is pressed but they have different scales. This means one counts from 0 to 100, while the other one counts from 0 to 50.



Accelerator Position Sensor faults can be caused by issues with the Oxygen Sensor(s) and it's wiring. Please verify this BEFORE replacing the ECM or Accelerator Pedal. Accelerator Pedal failure is very rare.


If you have just done a service and this problem started than you should check the wiring plug on throttle body also try cleaning the throttle body, and relearn the throttle adaptation using Vag-Com also, check your alternator charging rate.........
I have changed throttle body gas pedal o2 sensors but nothing.The epc light is on after start up with out press the pedal or sometimes when i step a little the gas pedal.Then the power is reduced and the car is kicking like a horse

[DiagExpert]

have you cheched the wiring and is ok ?

[Ashraf6119]

Have you checked the earth and power 5V or 12V on Acc Pedal on Pin 1 and 2 you should have Voltage and Pin 3 and 5 you should have earth

[kospoz]

Yes the wiring is ok and the acc. pedal is ok with power and earth.My head is smoking :smokin::banghead: with this problem

[Ashraf6119]

Yes the wiring is ok and the acc. pedal is ok with power and earth.My head is smoking :smokin::banghead: with this problem

OK now try and clean your Map Sensor which is in inlet manifold and see if that helps...........

[kospoz]

OK now try and clean your Map Sensor which is in inlet manifold and see if that helps...........

I will try it my friend and report thank you for your help

[kospoz]

update
the fault now that i have is 16610 throttle pedal position sensors implausible signal.
I checked again the pins and when i read 2 and 3 i had 4.3v but the 1 and 5 had 4.99v.I thought that was the problem and i put earth pin 3 which had the problem with 5 and now the reading is ok 5.00v both of them but the epc light came on again!!!!!!!
This way with earth point that i did it is ok or not?

[kospoz]

OK now try and clean your Map Sensor which is in inlet manifold and see if that helps...........

map is ok i saw it today