Failed idle air learning, stalled, won't start!

SouthArk370Z

Check the volts at the battery while cranking. IIRC, about 10V is considered the minimum (maybe someone will chime in and confirm/deny that figure).

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nismoZium

The voltage at the battery was sticking at ~11.4 while cranking, so no shorts it would seem. The battery is also only about a month old, so I don't think that's it. I did notice that the normal "press clutch + button" message on the dash didn't display until after I put the car into ACC, which struck me as weird.

I also pulled two of the easiest-to-get-at plugs (the front L+R) and both had clean electrodes with a bit of black buildup on the nearest thread or two.

I think my next two checks will be the MAFs and then maybe fuel, though I can definitely hear the pump priming when I key-on.

nismoZium

Last night's update:

In a "this can't possibly work" attempt, I topped off the gas tank which was sitting at a little under 3/4. No dice.

I moved under the hood and did hear a weird whining sound with the car set to "ON" - I pulled out my stethoscope and determined it was the passenger side TPS motor. Pulling the plug silenced it, and so I pulled the intake pipe off of my throttle body and gave the valve a little nudge with my finger. Plugging the TPS back in was now quiet, but the car behaved the same.

Next up, spark checking. I pulled the #2 plug and coil pack and grounded the plug to the frame via aligator clip. Craking produced multiple sparks at what looked like a regular interval.

So I think tonight/this weekend I'll be checking fuel. I can hear the pump prime when I turn the car on, but could it possibly be a cracked hat or blockage? Or possibly something with the injectors? Even a fuse or relay perhaps?

If the fuel system checks out, then I might be bracing for something much worse internally...