1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU

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Topic: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU (Read 6268 times)

fknbrkn

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	1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « on: August 25, 2015, 11:05:45 AM »

Hi
Is there any hw differences between 180 AUQ/AWP and 225 BAM ECUs? im talking about EGT sensor, ive got a k-type and 0-5v controller for this. Ive tryed to connect controller output to pin #61, ground to pin #50 and +12 from one of the blue/yellow wires and it working good without connecting #61. problem is +12 at #61 and it ruines output voltage. Unfortunally i havent a 225 car near me to test it, maybe its digital not analog 0-5v input idk

So my aim is to communicate ECU with my custom sensor. Offcourse i can use one of the free analog input pins with custom routine but maybe there is an easily way ..
thanks


« Last Edit: August 26, 2015, 01:50:14 AM by fukenbroken »	Logged

golfputtputt

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	Re: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « Reply #1 on: February 24, 2016, 07:15:31 PM »

Trying to do this also, hopefully this will bump it and someone will see. did you happen to get this resolved?
Why use custom instead of oem audi sensor and controller?


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fknbrkn

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	Re: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « Reply #2 on: February 24, 2016, 07:39:22 PM »

yeah
i did it some time ago
used 2nd O2 input, one map to convert 0..5v to -50..1100c, custom routine and all working fine
dunno why not used oem, just for fashion


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golfputtputt

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	Re: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « Reply #3 on: February 24, 2016, 07:49:59 PM »

What EGT sensor you use?
Doesn't ATR use the EGT temp and BTS uses EGT model on our early 1.8t's?


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aef

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	Re: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « Reply #4 on: February 25, 2016, 02:44:20 AM »

How accurate is the voltage reading of the ecu? x,x Volt or x,xx Volt?


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fknbrkn

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	Re: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « Reply #5 on: February 25, 2016, 05:29:19 AM »

im using some kind of industrial egt sensor from friend`s chem lab
output to tats_w and all working good with tt225 file but i dont know how to switch fueling to ATR in 180 files.

aeh, as i remember the measurement range was ~0..950 and that gave a 0.005v step. theoretically. but i took an input from a ecu input pin before filtered ushk so no any info about.
tats_w showing ~1c step and accordingly to almost same range of voltage (-50..1100c and 0... 950v) i`d say that its really some kind of 0.005v
you better to check ushk with plugged o2 sensor


« Last Edit: February 25, 2016, 05:53:47 AM by fukenbroken »	Logged

phila_dot

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	Re: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « Reply #6 on: February 25, 2016, 09:48:48 AM »

Quote from: aef on February 25, 2016, 02:44:20 AM

How accurate is the voltage reading of the ecu? x,x Volt or x,xx Volt?

10 bit ADC


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dgpb

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	Re: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « Reply #7 on: March 03, 2016, 05:18:09 AM »

Quote from: fukenbroken on February 25, 2016, 05:29:19 AM

...but i dont know how to switch fueling to ATR in 180 files...

Take a look at my thread, reply 29.
http://nefariousmotorsports.com/forum/index.php?topic=9161.15
As I extract from FR, ATR is an additive for BTS, not a Lambda mode to switch to. You have to set SY_ATR. And I'm afraid the only way is via assembly code.

I hope to have been helpful to you mate.


« Last Edit: March 03, 2016, 05:21:48 AM by diegogpb »	Logged

fknbrkn

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	Re: 1.8t 180/225 HW difference? want to add custom egt sensor to 180 ECU « Reply #8 on: March 03, 2016, 12:45:43 PM »

Quote from: diegogpb on March 03, 2016, 05:18:09 AM

yes, dlamatr_w kicks fueling when tabgbts reached (or tabgss, i really forget about all that stuff)
i take a look when i have a time for it
thanks


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