It simple they did not make a tacoma in 1990.
the hot wire goes to the starter and the ground wire bolts to the engine block.
hot wire
where is the tach wire en Toyota tacoma 1999 4 cilinders
there is no wire it is controlled by a sensor.
im stuck and I need help
The high beam wire on the 2004 Toyota Tacoma is red with yellow stripes. You can use a test light to determine which wire is active when the high beams are on.
Jumper wire from Battery + to Coil+Jump starter solenoid from smaller trigger terminal to starter side
Buy a tester.
The positive wire for the 2005 Toyota Tacoma tail light is red with white stripes. The negative wire is white with black stripes.
IAT wire colors
Which engine??
jump a hot wire downt to it with it running with gauges on it and read the readings.