Text only | Text with Images

MR2 Roadster Owners Club

The Workshop => Audio / Security / Electrical => Topic started by: cdrskull on June 2, 2008, 12:05

Title: Wiring Diagram or temp wire colour ?
Post by: cdrskull on June 2, 2008, 12:05
Hi peeps. I've been playing with alittle arduino board (microcontroller) and have got it reading my car speed to a lcd display. I was after doing a similar thing for my temprature readout, so was wondering if anyone new which colour wire was for the water temp guage ? Or if someone has the wiring diagram for the clocks so I can just find it myself.

cheers

Steve
Title:
Post by: aaronjb on June 2, 2008, 12:13
Doesn't look like engine temperature appears at the clocks other than as part of the serial encoded transmission between ECM & clocks.

The wire you want is Red with Blue stripe, going to pin 14 of connector C (E4) on the ECM.

(http://www.mr2ner.com/images/powerfc/ECU_Connectors.jpg)
Title:
Post by: cdrskull on June 2, 2008, 12:58
Hi fella, do you know what the serial transmission wire is I could perhaps tap into this and decode the info I need. Its only a data stream I would of thought.

Otherwise I will need to use the red/blue strip wire.

thanks for the info m8  :-) :-) :-)  it all helps

Steve
Title:
Post by: aaronjb on June 2, 2008, 13:03
You've got a PM, Steve  s:) :) s:)
Title:
Post by: philster_d on June 2, 2008, 13:26
I can read mine on a PDA connected to the ODB socket.
Title:
Post by: kanujunkie on June 3, 2008, 10:38
Quote from: "philster_d"I can read mine on a PDA connected to the ODB socket.

i think Steve has a more permanent install in mind though Phil

Steve, you have a pm  s:wink: :wink: s:wink:
Title:
Post by: cdrskull on June 3, 2008, 10:59
Well I have but not for this car  :-) :-) :-)

If you know what I'm like then I enjoy nothing momre than ripping a car to bits and sticking a glass body on top  :-) :-) :-)

Its nearly time for my next project and this time the donor is a mk2 mr2 turbo.. the car will end up looking like a Murcielago which will have speed releated moving spoilers and bat wings  :-) :-) :-)

The idea is to build a little box that will control these things depending what speed and temp your car is at. I have already managed to code up a little box that now reads the pulses from the dails and only need the temp now. Then I will make the box with a couple of relays. Its raining at the mo so cant be bothered going outside messing but if it stops will try and get a little youtube video done of whats I've managed so far  :-) :-) :-)

(http://i114.photobucket.com/albums/n261/extreme_011/murcirearlights.jpg)

a la bat wings  :-) :-) :-)

Just love messing !
Text only | Text with Images