A questoin for the guys runing gtx/gtr ecus with no knock sensor.

[Kitty]

TL;DR
If you have nothing connected to pin 2J could you tell me the voltage you get from it at idle?

Also dyslexia'd thread title, go me.


Too Long, Actually Read
I'm trying to design a bench test procedure for the factory knock system. I can get almost all the correct voltages and even a correct reaction from the knock sensor when tapped but I cant get the wire going to the ecu to be 4volts.

I don't know if the entire system acts a voltage divider or the control module is actually supposed to provide/send the 4v to the ecu when operating normally.

If 0 volts is present at 2J with nothing connected I know my **** is broken, if more than 4v are present I know the ecu is supplying voltage and I can replicate that.

The entire reason for this is I don't think the setup I had originally actually did a damn thing and I'd like to rectify that.

I would check myself but I currently do not have a bp26 ecu on this tiny little island.

[FE3-323]

do you need to borrow a bp26 ecu?

[Kitty]

I'd rather not risk shipping one here and back but I appreciate the offer.

I'm just trying to front load as much car work as I can before getting back to the states as I'll have a very narrow window to do things at that point, especially with getting the 240 back on the road after 4 years of non-use and it barely running when it was.