4wd Fault
 

93 R32 GTR

Hey all, i've got a 4wd light on the dash. Checked the 4wd ecu and get code 21, tps sen/circ. Adjusted tps to 0.4v engine off, 0.5v engine running at idle.

Light still comes on. Checked voltages using Power Fc hand controller and noticed that Tp voltage goes up when brakes are used and lights are used.

Kinda stumped, anyone have any ideas/experiences with this?

Cheers

-Michael-