JDM ECU Loom Help

Dear knowledgeable guru's ...I need your help badly

I have a 95 RZ TT (BPU) that came with a speed converter. Since removing an "Apexi Rev/Speed Meter" (some gadget that measures 0-60, etc) and adding 2 new gauges I've had a code 42 error when I hit 60mph (regardless of boost/revs/gear).

Having put the forum search feature through its paces I've come across several informative threads on the problem.

To date I have:

1>

Checked the Odometer loom for loose wires, etc - none found

2>

Fitted another speed converter that Jurgen kindly borrowed me - but that didnt fix it.

3>

Since the tripometer does increment, I believe this means the #1 speed sensor is sending a good signal as far as the Odometer, so I fitted a second hand Odometer that I purchased from JezzyBabes - but this didnt fix it

Frustrated at this, I pulled up the passenger footwell carpet to check out the ECU loom...and lo and behold I think I've found the problem!

Passenger Footwell

My car has an FCON V ECU fitted, and as mentioned above it came with an "Apexi Rev/Speed Meter".

The footwell looked like this before I touched it (no bird nest comments please lol):

http://mooch.pwp.blueyonder.co.uk/supra/F-CON_V_6.jpg

Since removing the "Apexi I-Monitor", it now looks like this:

http://mooch.pwp.blueyonder.co.uk/supra/ecu_loom.jpg

In the 1st image (when the "Apexi Rev/Speed Meter" was connected) the PINK WIRE (which I believe to be the speed signal input wire) is CUT and connected to the "Apexi Rev/Speed Meter" as follows:

:: Pink wire (plug side) connected to PEACH wire of "Apexi Rev/Speed Meter"

:: Pink wire (loom side) connected to PURPLE wire of "Apexi Rev/Speed Meter"

Having tracked down the installation manual for the "Apexi Rev/Speed Meter" I found this:

http://mooch.pwp.blueyonder.co.uk/supra/apexi_ecu.jpg

Note the lower diagram, showing the PURPLE (PINK in the case of the Supra) ECU wire cut and spliced into the PURPLE / PEACH wires of the "Apexi Rev/Speed Meter".

Possible cause of my Code 42

Im thinking that if I re-connect the cut PINK wire my Code 42 problem will be solved.

I have attached the "Apexi Rev/Speed Meter" instructions to this post should they be of any use.

Do you think Im on the right track or talking bollocks / barking up the wrong tree?

Regards

Simon

Apexi-RSM.pdf

It would make sense...

If the pink wire is not connected as it is supposed to be.. then the ECU wouldn't see ANY signal regarding speed, and that would make it send a code 42...

Thanks Phoenix - and nice avatar

Cheers

Simon

Whilst I feel like a dunce, Im on cloud nine as my Code 42 error is now fixed!