NefMoto > Noob Zone > Noob Questions (Moderator: turboat) > help apx wb conversion
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Author Topic: help apx wb conversion  (Read 1842 times)
Anto97
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« on: June 14, 2022, 12:40:25 PM »
hi boys
i am trying to do a wideband conversion for my audi tt with apx engine
I remedied the collapse of an ecu 8E0909518AA
with immo off the auto part but does not accelerate
it only keeps idling but if I press the accelerator it does not respond and with the engine off if I press the accelerator the throttle body "click" is not heard
having said this, how do you think I can solve the problem?
forgive my english Smiley
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aef
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« Reply #1 on: June 14, 2022, 10:59:10 PM »
8E0909518AA is a A4 ecu, are you sure it will work with your engine?

Usually, if you have a APX/APY you would use a BAM or AMK file one BAM/AMK/AUQ/AUM something ecu.
Some of the longitudinal ecus will work but im not sure of your 8E0909518AA

Describe what you did, step by step to help you.
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Anto97
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« Reply #2 on: June 15, 2022, 04:32:27 AM »
in practice I took this ecu I made it immo off and I tried to turn it on with the lambda probe disconnected and the car starts but if I try to accelerate it does not respond as if the accelerator was disconnected in diagnosis it gives me 4 errors on the can line that if I'm not mistaken the apx does not have and gives me an error on the throttle body
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BlackT
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« Reply #3 on: June 15, 2022, 06:19:34 AM »
And what about ECM relay that give power to TB?

Why you dont read forum little more?
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Anto97
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« Reply #4 on: June 15, 2022, 07:57:01 AM »
sorry I thought that all the ecu wb were quite equal to each other. do you think there is a way to get this blessed throttle body going or not?
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BlackT
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« Reply #5 on: June 15, 2022, 08:20:01 AM »
You need ECM relay that will send power to 121 pin on ECU
It must be correct conected, otherwise it will not work.
Look at any shematic of WB ecu
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Anto97
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« Reply #6 on: June 15, 2022, 02:29:51 PM »
thank you as soon as I have news I will update you
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Anto97
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« Reply #7 on: June 18, 2022, 10:50:30 AM »
is it possible that I have damaged the ecu wd after trying a start with the old probe nb attached?
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Anto97
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« Reply #8 on: June 19, 2022, 03:03:17 PM »
thank you very much for the tips i added pin 121 with 12 volts under key and now the tb works all that remains is to do all the electronic adaptation Roll Eyes
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