vehicle speed sensor question
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From: absecon,new jersey
vehicle speed sensor question I got my ls1 in my 73 vette and im ready to start the wiring,i already had a 87 t/a tpi motor with a 700r4 in it which im keeping the 700 in it ,i have a painless wiring vss adapter already on my 700.My question is what does the ls1 use for vss and what pulse is it,i know the tpi motors used either 2000 or 4000 pulse.Or can the pcm be programmed to not use it.
Heres basically what i have now.part number 60115
Heres basically what i have now.part number 60115
Joined: Sep 2004
Posts: 3,148
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From: Downers Grove, IL
Your old VSS is a square wave, the LSx motors use a sine wave output sensor with a lot more pulses. For some reason I can`t remember the specifics right now, but the info you need is at Jags that run. Just go to their site and you can download ch13 of their conversion guide, it has all the specs of the vehicle speed sensors.
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From: absecon,new jersey
cool thanks,ill check it out.
ok so the way i read it it says that the older tpi is square wave 2000 pulse and the newer motors are a 4000 pulse sien wave.SOi need either the #4pac from jags that run or the other one from painless.thanks again for the info.
ok so the way i read it it says that the older tpi is square wave 2000 pulse and the newer motors are a 4000 pulse sien wave.SOi need either the #4pac from jags that run or the other one from painless.thanks again for the info.
Last edited by nitrovette; Jan 23, 2006 at 02:47 PM.
Originally Posted by nitrovette
I got my ls1 in my 73 vette and im ready to start the wiring,i already had a 87 t/a tpi motor with a 700r4 in it which im keeping the 700 in it ,i have a painless wiring vss adapter already on my 700.My question is what does the ls1 use for vss and what pulse is it,i know the tpi motors used either 2000 or 4000 pulse.Or can the pcm be programmed to not use it.
Heres basically what i have now.part number 60115
Heres basically what i have now.part number 60115
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Joined: Mar 2004
Posts: 361
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From: Ontario, Canada
I was just looking in my hptuners last night, and you can manualy change the vss settings, vss output pulses/mile, vss pulses/mile, vss pulses/ mile, vss pulses/rev.
I'm doing a 5.3L/4l60E swap into a 3rd gen, and the transmission was a 4x4 so I don't have the tailstock or a vss. I was thinking of using a speedo cable pulse generator, then I would be able to retain the cable driven speedo.
I'm doing a 5.3L/4l60E swap into a 3rd gen, and the transmission was a 4x4 so I don't have the tailstock or a vss. I was thinking of using a speedo cable pulse generator, then I would be able to retain the cable driven speedo.
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Launching!
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From: absecon,new jersey
yes thats what im trying to do,i have 5 inch autometer phantom speedo and tach and want to keep that working so i want to use another speedo cable pulse generator.
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Thread Starter
Launching!
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From: absecon,new jersey
yes thats what im trying to do,i have 5 inch autometer phantom speedo and tach and want to keep that working so i want to use another speedo cable pulse generator.Theres got to be away around this,not everyone is using a 4l60e.
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TECH Apprentice
Joined: Mar 2004
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From: Ontario, Canada
I emailed Dakota digital about there pulse generator, and they said it gives off an 8000 pulse/mile AC sine signal. So the pcm should have no problem reading it, I just have to correct the pulse setting with hptuners.
I'm going to have a weird transmission setup, it was a 4wd early style 4L60E, I'm taking the output shaft, and tailstock off the 2.8L 700r4, so it with be a cable driven speedo 4L60E.
I'm going to have a weird transmission setup, it was a 4wd early style 4L60E, I'm taking the output shaft, and tailstock off the 2.8L 700r4, so it with be a cable driven speedo 4L60E.
Originally Posted by Black02Z71
I emailed Dakota digital about there pulse generator, and they said it gives off an 8000 pulse/mile AC sine signal. So the pcm should have no problem reading it, I just have to correct the pulse setting with hptuners.
I'm going to have a weird transmission setup, it was a 4wd early style 4L60E, I'm taking the output shaft, and tailstock off the 2.8L 700r4, so it with be a cable driven speedo 4L60E.
I'm going to have a weird transmission setup, it was a 4wd early style 4L60E, I'm taking the output shaft, and tailstock off the 2.8L 700r4, so it with be a cable driven speedo 4L60E.
