Chris Wilson Posted May 25, 2016 Share Posted May 25, 2016 Are the senders Hall effect or magnetic? Gear driven or impulse tooth? DavidP?? Thanks. Link to comment Share on other sites More sharing options...
David P Posted May 25, 2016 Share Posted May 25, 2016 No. 2 sensor, speedometer sensor is gear driven, no. 1 ECU speed sensor is not. Hall, magnetic or impulse I don't know, they either work or they don't and are easily swappable, which is as far as my fascination has gone. Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 25, 2016 Author Share Posted May 25, 2016 OK, thanks David, got a no speedo, no odometer job to do, on an auto TT J-Spec, and you know I have this fascination with `scopes and stuff... Link to comment Share on other sites More sharing options...
David P Posted May 25, 2016 Share Posted May 25, 2016 (edited) The no. 1 speed sensor is common with N/A & T.T. The no. 2 speed sensor is common with N/A & T.T., the gear that drives it however, is different and must not be changed. If you need any sensors, Delboy52, Mike has a box full. Edited May 25, 2016 by David P (see edit history) Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 25, 2016 Author Share Posted May 25, 2016 Thanks again, will the gear come off the sensor? Not sure what you mean by "must not be changed", do you mean the gear, or fitting the whole sensor / gear from an N/A box into a TT box? I have a scrap N/A auto box complete with sensors, I was hoping it could be a donor if required. Link to comment Share on other sites More sharing options...
Nodalmighty Posted May 25, 2016 Share Posted May 25, 2016 If it has 3 wires it's hall, 2 its VR. Link to comment Share on other sites More sharing options...
David P Posted May 25, 2016 Share Posted May 25, 2016 The gear will pull out of the sensor with your fingers, the shaft is the same fit at the sensor end, but the gear at the transmission end has different teeth and must stay with the box it was born with. Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 25, 2016 Author Share Posted May 25, 2016 Nods to Nod, and thanks again David! Link to comment Share on other sites More sharing options...
Swampy442 Posted May 25, 2016 Share Posted May 25, 2016 If you need any sensors Ive got a couple of auto boxes lying in my unit Link to comment Share on other sites More sharing options...
David P Posted May 25, 2016 Share Posted May 25, 2016 Speed converter wirogarmi is more likely than a dicky speed sensor. Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 25, 2016 Author Share Posted May 25, 2016 Thanks Swampy, and yes, I am hoping it's "something" behind the dash or in the footwell. I never cease to be amazed at how fully an average Joe can blitz a perfectly good wiring loom in search of the dubious goal of blue LED's or a dashboard like a 1960's Boeing Link to comment Share on other sites More sharing options...
Delboy52 Posted May 25, 2016 Share Posted May 25, 2016 All the black analogue speed sensors (89411-50010) that go on the side of the gearboxes are swappable between NA, TT, even the Lexus A650 5 speed gearbox I had uses the same ones. The no.2 digital sensor with the gear is the primary speedometer sensor TT (33482-59025), NA (33482-39415). Difference is the gear on the end that just slides out of the housing. Think I have all that right, and as David says I have a box full of gearbox spares as I had a year of "burning" through gearboxes. Attached the speed sensor test page. Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 25, 2016 Author Share Posted May 25, 2016 Thanks, that's all very helpful, cheers! Link to comment Share on other sites More sharing options...
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