Toyota Celica Supra Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
1,666 Posts
Discussion Starter · #1 ·
I have an 82 supra auto with a digital dash

recently did a transmission swap and while i was hookinng up the cable, i must have pulled the speedo out of the guage cluster.

when driving the transmission shifts smooth up until i get to OD.
I'm stuck in 3rd.

Could the sensor in the guage be linked to my overdrive?

I bought a new cable, as mine did not have the retaining clip on the guage end (hence being pulled out), but i have not had the time to install it.

any thoughts, I'll be tearing into it soon, but i wanted a little bit of foresight...

Thanks
Michael
 

·
Registered
Joined
·
552 Posts
Not sure about the earlier autos, but I know with the later ones, if the temp sender is bad or disconnected off of the thermostat housing the trans wont shift into OD. It is designed not to shift to od while the motor is cold. When your car is up to temp, the green resistor should read somewhere around 200 ohms. When I swapped to standalone, I just placed a 180 Ohm resistor on the harness, that solved my OD issues.. Good luck and let us know how it turns out..
 

·
Registered
Joined
·
3,721 Posts
I believe the speed sensor IS located in the instrument cluster, and needs the speedometer to be functioning to send the signal to the trans computer. So, yes.
 

·
Registered
Joined
·
1,953 Posts
I believe the speed sensor IS located in the instrument cluster, and needs the speedometer to be functioning to send the signal to the trans computer. So, yes.
This is truth. Auto trans and cruise control get their speed signals from the speedometer itself. If that does not work, non of your vehicles computers know how fast it is going.
 
1 - 5 of 5 Posts
Top