Have you had that pin checked at the ECU? Not the harness included, to exclude wiring issue?
All mine where crisp from fatigue!
I chased them all the way to the point they left the fire wall to the motor. Before this they where still supple from ECU/ pcm.
After trimming them at al, fire wall, it left me ample wire to fit a pair duetch plugs one foot after harness connector straight across to the motor.
Painful job, but now all my pcm connectors (3 of) are seperated in individual looms, via duetch plugs.
( they way it should have been ! )
I encourage to have this done on any new loom fitted.
Or ask for it to be a special order request.
Chasing faults in the loom is now a peice of cake.