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R32 Gtr -attessa - No Abs

exXU1
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exXU1 Mentor

exXU1

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ok looking back on my post dont know why i put up error code 20 flowchart

but here is Error 21 flowchart and better harness pic

RellikZephyr

Going down to workshop today and will give it my best shot - will let all know the outcome.

T04GTR Grand Master

T04GTR

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you still need to cut the wire at pin56 and join it to pin 38. (evan though the factory ecu isnt hooked up.)

i just hope the plug hasnt been chopped off.

from memory its a green/orange wire.

otherwise your gonna have to break out the multimeter and find the wire that gos to pin 47 on the atessa ecu.

code 21 is tps etc etc. its got to be conected to the aftermarket ecu.s throttle signal input... an has to be 0.4 volts

:D

is your abs hooked up? if it isnt ignore code 8.

exXU1 Mentor

exXU1

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you still need to cut the wire at pin56 and join it to pin 38. (evan though the factory ecu isnt hooked up.)

i just hope the plug hasnt been chopped off.

from memory its a green/orange wire.

otherwise your gonna have to break out the multimeter and find the wire that gos to pin 47 on the atessa ecu.

code 21 is tps etc etc. its got to be conected to the aftermarket ecu.s throttle signal input... an has to be 0.4 volts

:D

is your abs hooked up? if it isnt ignore code 8.

No ABS unit in the car at all- so i will ignore code 8.

thanks - going to go down and check now - i believe the ecu and tps are all hooked up - will let you know- do i disconect the air bleed connector still ?

exXU1 Mentor

exXU1

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Well guys,

tried as much as i could - did as you suggested Dave- 38 has been used for water temp on the EMS so i got 56 and went direct to 47 on the ets - no differance? Have re connected the air bleed as i was not sure if that is doing any thing. Soleniods - fuses etc are all in place.

error code 21 still flashing- i need to know where i go from here .

I think i need your on site help Heller

heller44 Mentor

heller44

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From what T04GTR (dave) has said and what I gather from the schematics, you just need to make sure that you are getting the tps voltage to the ets controller.

If you aren't getting the correct voltage on that pin 56, in respect to a common negative shared between the tps and ets, then the ets isn't going to see the correct tps voltage.

Pin 38 on the original ecu harness was the tps input to the ecu, pin 56 was the original tps output to the ets. What T04GTR was saying is just to bridge the original in to the original out, to send the tps to the rear of the car.

I know bugger all about how an EMS is wired in, so if the connector has been modified you need to find out which wires correspond.

James.

If I'm wrong on this T04GTR let me know, I'm not an auto sparky just an instrument/electronics tech, but I'm learning fast..

exXU1 Mentor

exXU1

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From what T04GTR (dave) has said and what I gather from the schematics, you just need to make sure that you are getting the tps voltage to the ets controller.

If you aren't getting the correct voltage on that pin 56, in respect to a common negative shared between the tps and ets, then the ets isn't going to see the correct tps voltage.

Pin 38 on the original ecu harness was the tps input to the ecu, pin 56 was the original tps output to the ets. What T04GTR was saying is just to bridge the original in to the original out, to send the tps to the rear of the car.

I know bugger all about how an EMS is wired in, so if the connector has been modified you need to find out which wires correspond.

James.

If I'm wrong on this T04GTR let me know, I'm not an auto sparky just an instrument/electronics tech, but I'm learning fast..

Thanks james ,

i have had enough for now - will try again on the week end when i have a little more patience - i would still like to see you come down and see what i am trying to do ?

exXU1 Mentor

exXU1

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ok looking back on my post dont know why i put up error code 20 flowchart

but here is Error 21 flowchart and better harness pic

RellikZephyr

Rellik ,

thanks for your help with the pin numbers but take note please. - i was looking in the wrong area for some time as the picture of the connections on the ETS have been mirrored and are back to front - your not to realise this as i didnt either - but something we have to be careful of.

thanks for your interest and input though. :happy:

  • 2 weeks later...
exXU1 Mentor

exXU1

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:D Back again boys - attesa working but when brake is applied it disengages - same as when one slows down and turns the key on and of whilst moving - code is 9 - which is ABS actuator relay any help ? Damn thought we had it - cant be much now !?

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