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Author Topic: won't rev  (Read 5660 times)
gareth_iowc
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« on: October 12, 2017, 12:52:08 PM »

Evening all,

so my friend had a leon aug with a dead ecu so i did a de-immo on a AUM HJ ecu as the engines have the same options.

the car starts and idles fine but the throttle pedal does nothing.

any ideas?

thanks
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adam-
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« Reply #1 on: October 12, 2017, 01:46:08 PM »

Why was it dead? 

O2 sensor short probably.
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gareth_iowc
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« Reply #2 on: October 12, 2017, 02:01:26 PM »

unsure.

you can flash it in boot mode but the rom wont start when the ecu was power cycled.

so thats why we went with the spare hj.

just interesting the pedal is unresponsive

 
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adam-
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« Reply #3 on: October 12, 2017, 02:09:43 PM »

Codes?
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gman86
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« Reply #4 on: October 13, 2017, 03:19:11 AM »

unsure.

you can flash it in boot mode but the rom wont start when the ecu was power cycled.

so thats why we went with the spare hj.

just interesting the pedal is unresponsive

 

Smells like Adam is bang on the money. I'd check the wiring for the O2s before plugging in a new ECU or you risk toasting it as well.
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Waspjr
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« Reply #5 on: October 18, 2017, 01:08:31 PM »

Throttle adaptation or have you confirmed sync of pedal and ecu readout. Like data stream with pedal movement.


Sent from my iPhone using Tapatalk
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Carsinc
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« Reply #6 on: October 24, 2017, 08:09:13 AM »

I hate threads like this. OP please come back and post something, "yep guys wiring to rear 02 all messed up
I ruined a couple ecus but I learned. Also how do i delete the rear 02 from this file..."
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gareth_iowc
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« Reply #7 on: October 24, 2017, 09:02:06 AM »

Hey sorry guys things have been mad at work. I'm looking this weekend.
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Carsinc
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« Reply #8 on: December 08, 2017, 03:52:55 PM »

Like i get busy at work, but damn.....someone delete this thread it just pisses me off
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gareth_iowc
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« Reply #9 on: December 08, 2017, 03:58:26 PM »

 Roll Eyes

totally forgot about it!

So it was nothing to do with the 02 sensors water was tracking up the loom and into the plug under the battery and was causing problems. it had also made its way into the ecu
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Carsinc
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« Reply #10 on: December 08, 2017, 04:02:19 PM »

Ahhh, have only seen it a couple times it stil blows my mind
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gareth_iowc
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« Reply #11 on: December 08, 2017, 04:14:48 PM »

Yeah I’d heard of it but was the first time I’d seen it.

Couldn’t work out where it was coming from and the plugs were really bad so I did a full bay loom change
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Carsinc
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« Reply #12 on: December 09, 2017, 01:37:42 PM »

coolant temp sensor or coolant bottle. no reason not to replace both
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