how do you read cel on a 88 supra turbo?? just turn key to ignition and watch it blink or something??
jackattack;1393660 said:code 21 .... o2 sensor. The person who owned my supra b4 me bypassed the o2 plug by just soldering the wires and now they undid. Any1 know witch wire sobers were??? 2blk 1 blue on o2 .... harness its brown wire, blk and orange wire and orange and green wire