I'm getting two codes with an ASR light on my 92 400E

38 pin connector X11/4
pin 6 code 30
pin 7 code 14

these codes are clearable but will repeat after starting.

History,

Started throwing codes and limp mode a week ago and wouldnt self clear when restarting. Would have ASR light immediately on start up.
Throttle plate was visibly dirty so I removed air mass sensor and cleaned throttle body and plate with cleaner. Restarted car no codes but when I stepped on the accelerator engine reved but did not slow down when lifted off accelerator (then threw ASR light). Have recleard codes and the 30 and 14 are the only ones that show up. Now they only show up after reving engine and releasing the gas pedal - the engine speed doesnt return to idle as it should.

I did find that the accelerator linkage wasnt readily returiing to its original position. I disconnected linkage from the throttle body (electronic throtle actuator) and the actuator has no problem returning on its own.

So this afternoon I'll remove the linkage and lube up the pivots. I figure I can isolate out the Belden cable by disconnecting it and seeing if the resistance is still their, same with the throttle cable.

Anyone ever have this?

I'm just trying to fully diagnose this since I originally thought it was the Electronic Throttle Actuator (at about $1000). But now I'm hopeful that its a cable or pivot.

Didnt see anything related to the linkage on any of the other ASR M119 problems I searched in the archives.

Thanks
Paul