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View Full Version : obd2 G/box on a obd1 t5?



merc85
Saturday 21st January 2012, 20:32
Hi, i need a New gearbox, Big Rotch has one but it's from a obd2 850 95-where the speedo is read from the cv joints/abs pick up.

My 94 855 t5 has speed sensor pick up on the side of the box.

Is it possible to wire into the abs sensor's on my obd1 car so i can use his obd2 850 t5 box? if so how?

Also would i have to Change the Speedo Head/instrument cluster to the obd2 one? this he also has.

Any help much apreciated.

p fandango
Saturday 21st January 2012, 20:38
yeh you just need to take the wires off the speed sensor on the gearbox & wire them to one of the ABS speed sensors. Instrument cluster & everything else will be fine. I've got to it myself yet

Volvostorm
Saturday 21st January 2012, 20:42
Yes, its possible, gotta do it to mine :)

Speedo plug is red (is on mine) just solder the wires on to the ones from the N/S ABS sensor, I'm fairly certain it doesn't matter which way around you connect them either.

merc85
Saturday 21st January 2012, 21:50
Would the OBD2 Speedo work? on this set up?

p fandango
Sunday 22nd January 2012, 07:58
Would the OBD2 Speedo work? on this set up?
it should do, is someone after the higher speedo lol. I've fitted NA dials & they work ok

bigrotch
Sunday 22nd January 2012, 08:24
it should do, is someone after the higher speedo lol. I've fitted NA dials & they work ok
I've got a nice set of v70 dialsready and waiting to go in it lol 160mph on the clock;)

p fandango
Sunday 22nd January 2012, 08:31
I've got a nice set of v70 dialsready and waiting to go in it lol 160mph on the clock;)
but does your rev-counter go to 8krpm ;) lol

T4Rick
Sunday 22nd January 2012, 10:28
Im running n/a clocks on my t5 still

AndysR
Sunday 22nd January 2012, 11:48
but does your rev-counter go to 8krpm ;) lol

Don't all the V70 T5 and R clocks have an 8k rev counter...?

p fandango
Sunday 22nd January 2012, 14:47
Don't all the V70 T5 and R clocks have an 8k rev counter...?
no idea on S/V70 stuff, 850's rule lol