AUQ engine horrible stutter and misfire code

ndyke020475

Active Member
Feb 9, 2016
1
0
Hi guys I've just payed for ecu on my seat Leon cupra due to lamba sensor wiring fault well got car back it still got epc light comes on just as u first press throttle and it won't rev over 3000 the guy said it was boost sensor I done that but still no power over 3000 an keep getting fault code saying accelerater to high anyone help

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mty12345

Active Member
Jun 17, 2011
3,907
538
bristol
Hi guys I've just payed for ecu on my seat Leon cupra due to lamba sensor wiring fault well got car back it still got epc light comes on just as u first press throttle and it won't rev over 3000 the guy said it was boost sensor I done that but still no power over 3000 an keep getting fault code saying accelerater to high anyone help

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Probably one of the 2 sensors on the throttle pedal itself from the sounds of it. Do you have the actual code number or full description of the fault code?

Edit: If you have vagcom then you can check the values of the 2 sensors in group 62 of the "engine" module. The 2 sensors both have different ranges.... The one in "box 3" reads between approx 10%-98% (according to how far you have the pedal pressed) The one in box 4 only reads in the range of 5%-49% (49% being pedal to the floor)

The sensor shown in "box 3" of group 62, should be approx twice the value of the one shown in "box 4". Also they should both change evenly, and at the same rate, as you press down on the pedal. So for example, if "box 4" is showing 25%, then "box 3" should be showing 50%.

Hope that makes sense and is some use to you buddy.
 
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