Well i put in the an ohc a while ago but my temperature is never right. It is wired to Johns directions the only thing i dont have wired up is the speed wire because i dont know what to hook it too even when my truck has been sitting all day and i just turn the key its not right its colder than what it is out.

Anyone know what might be wrong with it?


Thanks

Cam

 

I know in a stock OHC in my mom's car it takes 15 min for the temp to be right... not sure if it's the same with these??

 

The speed wire has to be used. I tells the temp display that the truck is moving.

 

http://www.therangerstation.com/Maga...ad_console.htm

 

^^What he said....that speed sensor HAS to be wired up in order to get a proper temperature reading. It's all about mathmatics that are computed in that OHC circuit board....takes speed, temp sensor, puts it in a formula, to determine accurate temperature, then sends it to the display.

 

that link doesnt help me at all i dont have a GEM in a 94


Shane i was told that it wasnt needed b4 but maybe it is so i guess i have to wire it up.


So what do i wire it too

 

You have a mechanical speedo right? If you do then you are pretty much SOL. Maybe you can run power to it but I don't know how well it would work.

 

If you have cruise control there's supposed to be a speed wire for that. We're putting one in for a BroncoII someone on another forum said it'd work.

 

someone on here with a 94 did it. i cant think of his name but he has a light blue truck and just bought an f150 too and lives in new york

 

I think that guy just ran 12 volts to the speed wire.

 

there is a blue wire if i remember correctly that runs down to where the speedo gear is and goes into this little box could i use that?

 

Mine works perfect in my 94', can't remember if I hooked up the VSS wire or not, I thought I did.

 

can you look into it and see what you hooked it too

 

the wiring that john has directions for isn't the same wiring as yours is it?

 

it is till the gem

 

the wiring will still be different tho right?

 

no why would it be

 

https://www.ranger-forums.com/forum2...ad.php?t=65028


found my answer

 

might help ya...

 

bc they are different generation of rangers. pretty sure they changed the wiring. not 100 percent sure tho

 

well shane quoted it

 

so it is still the gray/black wire.

 

i guess but its on the pcm

 

I don't have a 1994 schematic but it should be electrically identical to the 1993. Gray/black at the PCM, at the Speed Control Amplifier or at the VSS signal Generator on the transfer case (or anywhere in between).

 

is the vvs the blue wire that is running alone the speedo cable?