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Discussion Starter #1
So I cold started it my car at 6am. Drove out of my subdivision, and the car stalled out. Started it back up and the engine started perfect, but then proceed to immediately die. I did this maybe 6 times and until battery didn't have any more juice(battery life isn't the best when tested, but it has never let me). started every time, and died immediately. The car threw a check engine light when it stalled out;Im pretty sure my car threw a oil light as well. I tried to read the CEL and couldnt...OBD said there were not codes(not sure if this is because I tried reading it after the engine wouldn't crack anymore due to low battery or what.)

Stranded in the middle of the street(glad it wasn't busy) waiting for the tow I checked my oil. Plenty of oil on the dip stick that I didn't even bother wiping it off and checking again.

Was towed to a shop. I knew I could fix it myself but the tow was $85 so I just went with the safest option. They have not even looked at the car yet.... its been several days. Ready to tow it to mazda dealer or go fix it myself.

The day before it broke down I checked my air filter. Wondering if one of the MAF sensor wires got stressed and now has a poor connection

Here is what I think it could possibly be:
MAF wires
Fuel pressure regulator
fuel relay
cam shaft position sensor
a poor ground
crankshaft sensor(rpms went up when started, so not sure if that rules this out)

Final Comments: car ran fine and then all of a sudden started dying immediately after starting the engine. my long term fuel trim has went from 0% to -5% to now -7% when idling(before it broke down) over the past month and a half, maybe suggesting that a sensor was going bad or that the pressure regulator was going bad.

If your battery dies does it clear the CEL?
I come from an electrical background so feel free to talk technical with me. Thanks

PLEASE. Help me. Any words of wisdom? THANK YOU :)
 

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Discussion Starter #5
^just kidding. I measured the oil control valve. Whoops.
The cam shaft position sensor had 3 prongs despite the manual saying it should have 2. That was odd. Must be cause manual is from 2003 and my car is a 2007.

I think the oil light came on only because the car died. Because the light didn't come on until the car died(or at least until like 100RPM). Engine dies wil in on position, makes sense it thinks oil pressure is low. So im fairly confident that light can be ignored. Look it up if you want, It's a thing apparently.

Still don't know what the issue is. Starting to suspect only the fuel system.

PLEASE COMMENT! HELP ME PLEASE :)
 

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I'm also having this problem with my 2014 Mazda 6 72k miles. Ran fine last night (although seemed like it was struggling uphill to switch gears) Went to start it this morning and it turns on and immediately shuts off within a second. Any updates on this issue?
 
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