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Necoa #: 2182
Location: Costa Mesa, California
Joined: Jan 13, 2004
Posts: 25
Posted: Mon Mar 08, 2004 5:27 pm Post subject: VSS needed?
is the vehicle speed sensor needed? i have converted my elco to TPI and i went with the speed density set up, i have heard that this set up has a 4 pulse VSS, and my original VSS on my elco is 2 pulse. is there something that converts 2 pulse to 4 pulse or do i get a 4pulse from a 700r4 and use it my tranny. but im using the 2004r. will it work please help.
thanks _________________ 87 TPI El Camino In the Process.
Man who stands on toilet is high on pot.
Necoa #: 478
Location: 17(S.CA,S.NV)
Joined: Oct 10, 2002
Posts: 1634
Year: 1982
Model: El Camino
Posted: Mon Mar 08, 2004 8:17 pm Post subject:
I can't help you on the trannies but the ECM likes to know the speed that car is going. It helps with calculations for Air/Fuel ratios. At least that's the way it works with LT1s and LS1s.
Necoa #: 1737
Location: merkel by god texas
Joined: Nov 03, 2003
Posts: 81
Posted: Tue Mar 09, 2004 1:27 am Post subject:
am assuming you are like me. 86 or 87 elky. if it's older, i'm surprised that aucath hasn't replied. he is the electrical genius on this site. give him a pm or something. if you get it all fixed please let me know. bob _________________ easier to laugh than cry, pass the bandaids !
Posted: Tue Mar 09, 2004 10:06 am Post subject: Re: VSS needed?
1badelco wrote:
is the vehicle speed sensor needed? i have converted my elco to TPI and i went with the speed density set up, i have heard that this set up has a 4 pulse VSS, and my original VSS on my elco is 2 pulse. is there something that converts 2 pulse to 4 pulse or do i get a 4pulse from a 700r4 and use it my tranny. but im using the 2004r. will it work please help.
thanks
If the TPI setup is out of an 85-89, it will require a two-pulse (2000 pulse per mile) VSS.
If the setup is from a 90-up, it will require a four-pulse sensor.
First you need to verify your setup.
If you need a four-pulse, there is an adapter type of sensor that mounts inline with the speedo cable that is available. _________________ El Camino Central Founder/AdministratorAuto A/C & Electrical Shop Owner, ASE Master
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