code 2Z?

i got my car checked out (88 w/ possible bhg). they said it pressure tested fine and showed no leaks. but code 2Z (or maybe 22) showed up, somethin about coolant temp circuit open or shorted. can anyone help me out with this?

It indicates that something is wrong with the coolant temp sensor. You will have to run the wires and find the problem.

You can find the FSM here:
http://www.cygnusx1.net/supra/library/TSRM/index.html

i was just wonderin if anyone knew where exactly this circuit can be found. im not the greatest with wiring diagrams, so any help is alot :banghead:

Near thermostat elbo shape ,radiator hose.