Where is the M54 fuel line schrader valve (to test lean conditions fuel pressure)?
I don't see the fuel line Schrader valve anywhere on the Realoem diagrams.
I'm sure I'm missing something obvious ... and I've asked in some of the lean-misfire threads ... but no answer yet ...
So I figured I'd ask outright in its own thread:
Q: Where is the M54 fuel system Schrader valve located?