ok ive got an 86 camaro with the 305 FI.... been having funky oil pressure readings so im going to change both sensors/switches..... my question is... i can easily find the sender on the right hand side of the pic... but the one on the left?... not a freakin clue... does anyone have the part number for this one... remember it is NOT the same as the later 91-92 ish models.... oh also the only number i found after searching is D1843.... which only shows applicable to the 4 cyl models....

 

The sensor in the left picture is usually above the oil filter. I think only the later motors (88 and up?) got that sensor placed there though. I don't think yours should even have that one.