67 twin turbo dart

Okay just checked at the sensor got 955ohms and the same with connector in place and measured those wires same resistance. Grounded both sensors again and they both went max and back down after you release the ground, odd thou the oil psi gauge doesn't drop down like the trans temp, same gauge, have to connect the signal wire and cycle the key to get it to drop down to 140 base temp reading. Wonder if that is the issue the gauge is messed up on the sweeper motor