Oh! A 2000! That's diffferent. See if this helps.
Check for battery voltage (ign switch to RUN) at the RED wire at the MAF. If missing, check fuse F18 in the underhood fusebox (15A).
In addition to the MAF, F18 supplies the PCM, fuel pump relay, fuel injectors, and IAC. The cam and crank sensors are supplied from within the PCM, possibly from this same 12V line. The EVTM does not give that detail.