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using autometer 5291 for vss input?

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Old Jul 22, 2007 | 10:24 PM
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Default using autometer 5291 for vss input?

Has anyone succesfully used an autometer 5291 hall affect sender as an input for vss signal to the ecm? in my swap its not easy nor do i want to run a reluctor wheel type vss and was wondering if anyone has used the auto meter type senders to tell the ecm how fast the vehichle is going? I know the autometer sender puts out a square wave signal and i believe the factory vss uses a sine wave signal not sure if the two are compatable or what? any and all input is greatly apreciated -thx neil
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Old Jul 24, 2007 | 04:13 AM
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Jags that run has a sender that puts out a sine wave signal in 4 pulses would that be a better choice? someones gotta have some input on this ?
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Old Jul 24, 2007 | 05:37 AM
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A factory VSS puts out a sine wave signal that then gets converted to square wave inside the pcm.
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Old Jul 24, 2007 | 05:50 AM
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so i take it the computer can accept a square wave signal? it must be a sine wave in order for the ecm to read it ?
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Old Jul 24, 2007 | 09:11 AM
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just wondering why you don't go straight from the factory vss to the speedo?
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Old Jul 24, 2007 | 11:23 AM
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What are you trying to do? What trans are you running?
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Old Jul 24, 2007 | 11:53 AM
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Im running a th400 and im trying to give the ecm a vss input i do not want to do all the bullshit relluctor wheel etc that the f body guys alwaays do
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Old Jul 24, 2007 | 02:41 PM
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I have a 200-4R and you can't put a reluctor or any type of factory VSS on it.
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Old Jul 24, 2007 | 07:49 PM
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so what did you do?
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Old Jul 24, 2007 | 08:29 PM
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Right now, I am running a carb, but I will probably get the VSS from Jagsthatrun when I go back to injection, which will be soon.
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Old Jul 24, 2007 | 10:44 PM
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so the 4 pulse sine wave sender from jags that run is what is needed basically?
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Old Jul 25, 2007 | 04:59 AM
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I believe so. Thats the one I am going to order. Let me know if you have problems getting it to work. You will probably get yours ready before I do.
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Old Jul 25, 2007 | 05:07 AM
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im still debating i might just tune around the vss and run the mechanical speedo with a cable and call it done
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Old Jul 25, 2007 | 10:34 AM
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Correct me if I'm wrong, but you can get around having a VSS Signal if you go to a SD tune, You will be working off the engine RPM's and will not need a VSS input. You can also do away with the MAF by going SD. Just a though.
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Old Jul 26, 2007 | 12:18 PM
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Originally Posted by bczee
Correct me if I'm wrong, but you can get around having a VSS Signal if you go to a SD tune, You will be working off the engine RPM's and will not need a VSS input. You can also do away with the MAF by going SD. Just a though.
Hate to hijack your thread, but I would like to find out if this is correct. I am going to be using a SD tune, and if I didn't have to have a VSS signal it sure would make my life much easier.

Jamie
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Old Jul 26, 2007 | 02:08 PM
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i as well will be in a sd tune a 2 bar sd tune to be exact so ya any clarification on this would be great
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