Looking for ideas... I am getting a trouble code 12 immediately even when resetting the ECU. I have checked the wiring but the description for the error code is not very detailed. Truck seems to run fine but error code is bugging me. I have just recently purchased this truck, it is a 94 22re 4x4 and did a head gasket, timing chain, 02 sensor.


88 4x4 Toyota - Stock -