hi
i am black exvtec
with a 2001 civic having p0135 dtc
i am new to this forum and looking for directons
did all the testing at my level
at the engine side there is 12v heater power
but the ground does not register
i have checked continuity on both wires from the harness side to the ecm plugs
continuity checks good with ohm multimeter offcourse with ign off for heater cuircuit same colour wires leading up to the ecm/ pcm
this is where testing has stalled for directions
btw how can i determine that my pcm/ecm is or not at fault
the civic runs awesome no issues at all except p0135
it always starts first click any time.
looking for guidance
thanks to all readers / members/xperts