My 1983 Cutlass Supreme w/V6 3.8L and E2ME carburetor keeps setting code 21 for “Throttle position (TP) sensor-voltage high“ I’ve gone through the different service manuals I have that even touch on servicing or diagnosing the TPS and I feel like there has to be a better diag procedure. I know I’m probably being too optimistic but was still curious to hear what everyone else has found to be somewhat effective/efficient