expecting the worst.. omp senor

[Phoenix7]

You can't remove the OMP on an S5 because it's electric, not mechanical (like S4)...you'll go into limp mode.

Best bet is to look for one used...PM/call engine builders, and shops that work on rotaries to see if you can get a used OMP.

Second best is Rtek with OMP delete.

Third best (the one I'm least knowlegeable on) is to switch to an S4 OMP and THEN deleting it and premixing.

as far as premix (please wait till someone else confirms this) I believe it's:

1oz./Gal. without OMP.
1oz./4 Gal with OMP.

Sorry to hear man, you've been having issues with that car for a while now.