TVR Speedo Interface Box wiring

[Kensaunders]

Hello all

Anyone able to confirm the following wiring setup on the Speedo interface black / sometimes green box behind the dash?

5 wires:
1. Blue/Yellow = SIGNAL. (to speedo) (True Road Speed?)
2. Green = LIVE POWER. (to speedo) (from Ignition Live)
3. Black = Negative EARTH. (to speedo)
4. Grey = SENDER – to the speedo sensor
5. Green/Yellow = ECU – direct to ECU Pin No.6 – Note pick up for this is PIN 2 in white/clear 8 flat pin plug TVR engine loom.

and also how those wires fit into the connector that attaches into the box.. I think it is this:

starting at the top row on the connector and working left to right on wiring:
1st row: Black, Blue/Yellow, Grey
2nd Row: Green/Yellow, Blank, Green

any thoughts, comments, photos appreciated..

thanks

Ken

[Kensaunders]

if I don't have it wired in the engine stalls..hence need to wire it in correctly unless there is a work around without changing the normal ecu setup...

[Kensaunders]

yes this is to connect into the ECU - probably should have been clearer in my wording - from what i understand the box, made by TVR is quite crude but effective, it gives a false max speed reading to the ECU to allow you to go faster than i think 90mph which was the original limit on the LR ECU to fit with LR tyres which had a speed rating maximum. it also I think gives some sort of reaading to the stepper motor to help or may be not on the idle.. certainily without it plugged in my engine is stalling and after an overall of electrics I'm trying to sort out how it is plumbed in correctly.. if anyone has their dash off and can post a pic of the wires in situ that would help confirm the positioning..

[Kensaunders]

Ok so really now needing to confirm the wiring on this box - whether the debate is to have it is not I've chosen to keep it on my engine but need help to confirm what the connections are for the wires and where they go to..