My car all but died and won't wake back up!?!

[Mach 1]

Theres 4 wires, labeled A,B,C and D. They should be labled on the plastic piece. If not, let me know.

Wire D is the MAF SIG, or Signal to EEC-IV module.

Wire C is the MAF return or Signal return.

Wire B is is the vehicle power ground.

Wire A is the VPWR, or vehicle power.

1) Test VPWR and Ground:

With key off, disconnect MAF connector
- Connect DVOM (digital volt ohm meter) between VPWR and GND at harness connector
- turn key on, leave engine off

You should have 10.5 volts or greater.

If not, theres a fault in VPWR ciruit or in GND circuit to battery.

2) MAF circuit short to ground:

Key off
Connect DVOM between MAF SIG and MAF RTN, and MAF SIG and GRD at harness connector

Results- 10,000 ohms or greater

if not, fault in wiring to control unit or faulty control unit. (EEC-IV)

3) MAF sensor voltage

MAF sensor connected
- backprobe MAF sensor connector between MAF and battery negative(-) terminal
Engine running

0.2 to 1.5 volts dc

If not, MAF sensor may be faulty