i have a couple problems first off i got a code 25 (lean code) but the truck also is acting like it has a dead cylinder#1. i have already replaced all the injectors plugs wires cap and rotor but is still doin the same thing so i checked for compresion spark and injector pulse and its all good. but its still doin the same thing.

 

Toyota did not make a 1993 Tacoma.

 

My money is on a bad O2 sensor (oxygen sensor) if everything else checks out. Most likely pre catalytic converter...these engines don't like it when those sensors go bad

 

sorry scuba my 93 pickup 4x4. ive heard people tell me the o2 sensor so i went ahead and changed both of them and i still have a dead #1 cylinder.