OBD1 Gearbox speed sensor to OBD2 Please help!

[merc85]

As above, Will be fitting the later m56h box to my to my early 850. The Early box's sensor takes the ready off the drive shaft in the box.

My later box doesnt have this, I have bin told you have to wire it to the n/s cv joint.

Has anyone posted a definitive guide to doing this please, Would really appreciate the advice.

Will be fitting the engine and box next saturday, im guessing i have to splice into the abs wires to the cv joint and all should be ok??

Kind regards Gav/merc85

[M-R-P]

Pedro knows about this... he'll probably be here soon...

[p fandango]

simply wire it to the ABS wheel speed sensor on the hub, not tried it myself but been told it works

[M-R-P]

Tadaaa!

[p fandango]

Tadaaa!

if it wasn't for the F1 being on so late i'd be asleep by now lol

[merc85]

simply wire it to the ABS wheel speed sensor on the hub, not tried it myself but been told it works

Do you still keep the abs wire connected to that cv joint? or do you just wire/plug the speed sensor to it and leave the abs wire un conected?

[M-R-P]

Gotta splice it in mate, keeping it all connected, just pigg-back-ing off what's there.

[merc85]

Thanks for the replies, Be good to here from someone who has done this, just to confirm the matter, Really apreciate the replies tho

[Volvostorm]

Yeah, it works, done it to mine


Knew I had a picture somewhere!

[M-R-P]

How come you have a Left track rod on the right hand side? lol

[Volvostorm]

They have been changed since then, but a good point!

Its been like that for years, must have bought it like that!

[merc85]

Yeah, it works, done it to mine


Knew I had a picture somewhere!

Your a Star! thankyou very much buddy, And M P, That pic is correct LH stamped on the Track rod end and it is the LH side as you can see the gearbox. Ta peeps very happy now

[M-R-P]

lol

[M-R-P]

Your a Star! thankyou very much buddy, And M P, That pic is correct LH stamped on the Track rod end and it is the LH side as you can see the gearbox. Ta peeps very happy now

Aaahhh yep, that is the left hand side lol (track rods go behind the hub on Volvos lol) good spotting Gav... BUT somebody thought I was right lol

oh dear pmsl!

[Volvostorm]

I couldn't remember, changed them in August!, still, I will have another look next time I'm up the unit

[t5steve]

just to doubly confirm it works......................had to do this on shrecks car after gearbox change....................info once again courtesy of pedro............thanks

[merc85]

Its always handy to have hands on experience when confirming these mods as you wouldn't wanna take a 850 gearbox out twice in one day.

Ta peeps very helpful as usual

[Scairns22]

Hi guys gona hijack this thread a little bit. I have a simiar problem. I have an obd1 car with obd2 t5 wih m59 box. The engine loom has been swapped so no plug for the gearbox sensor. Ive decided to wire direct from an abs sensor to the dash cluster. Is this possible and will it work? I have been told to use the yellow/brown wire in pin a3 of the larger plug. The car has 1995 wiring in dash but 1996 clocks from 850r. Any advice would be great thanks.