Need help with the wiring on the female adapter for the primary o2 sensor 4 pin. Mine shows 1 yellow grn 2 red 3 green 4 white. On my service manual it says 1 is red and 2 is yellow grn and I've had problems with o2 sensors for awhile now. What does everyone else have will provide pics.
O2 problems with kpro and now own ecu and own o2