That circuit feeds the ignition coil(s), injectors, alternator field, and oxygen sensor heaters. On some models, a common cause for the fuse to blow intermittently is the wiring harness near the oxygen sensors falls down onto hot exhaust parts and shorts out. Check that first. If you can get the short to act up more often, there is a trick to prevent wasting a lot of fuses. You'll need a 3057 light bulb, or something similar, two universal spade terminals, and a pair of small jumper wires, (clip leads). I'll prepare a wiring diagram for this circuit.
Saturday, May 2nd, 2020 AT 6:40 PM