I’m trying to track down what may be a grounding issue for my ECU (or my ECU is faulty… joy). The brown-with-black wire running out of E1 on my ECU looks like it snakes through the bigger harness into the engine bay, then down towards the starter (where i can see it / it’s out of the insulation at this point), past that and then it looks like up over the transmission and clips into the O2 sensor.
What am I missing? Where should the wire connect to a ground?
side note: I think I ordered incorrect O2 sensors (1989 ones and not 1990 ones). Anyone know what that would do to the ECU?
**Still tracking a crank no-start with no CEL when the key is in “on” issue**
**1990 FJ62, 11/89 manufactured date**
What am I missing? Where should the wire connect to a ground?
side note: I think I ordered incorrect O2 sensors (1989 ones and not 1990 ones). Anyone know what that would do to the ECU?
**Still tracking a crank no-start with no CEL when the key is in “on” issue**
**1990 FJ62, 11/89 manufactured date**
