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The only weird thing the pcm is doing is sending more fuel than usual probably because the gasket on number 2 cylinders intake port is leaking, for the aforementioned issue with the tab

Ok so took it to Mazda. Turns out there is a problem with fuel, when it stalls, the pressure immediately goes to zero, it supposed retain pressure for about five minutes Utes. Also known problem with...

as for misfire, misfire count on all cylinders in the last 300 miles(last time i disconnected the battery) is in order of cylinder 1-4, 3,5,2 and 1. so doubt its that. maf also reading proper...

ill see about getting a diagram. i have access to alldata, so ill start there. on tuesday, im getting a reflash done from mazda, ill also see if they can check whats going on in in their little black...

Yeah battery is 2 years old, tested fine, cca were right where they are supposed to be and I've never had an issue with it.

This is what I was thinking. I know of a service bulletin that dealt with the a/c causing this and the fix was a pcm reflash. It's a similar enough problem that it might work. You mentioned sensors....

Yeah I'd buy that if it wasn't for the ridiculous voltage fluctuations. There is no way that engine hunting by itself is causing THAT much fluctuation in the voltage. Unless I'm completely wrong...

Okay so took a voltmeter and tested for resistance on the ground circuit and positive lead to battery, both well below a tenth of a volt. Fluctuations happen at alternator as well same readings. Had...

https://youtu.be/5Pl1eIhJGhc
Video with cycle of headlights on and off.

Also, wierd bit here, (as if this whole damn thing isn't already weird) sometimes, more often than not, my car will shock me as I'm getting out of it if I am touching the body of the vehicle. Could...

As for sound system, I completely disconnected it from everything, as that was my first thought. During troubleshooting, I disconnected ALL wires going to anything sound system related, to try and...

Lkq guarantees thier alternators as being in working condition. I could play the send me a new one game indefinitely with them if I really wanted to. I've had great luck with lkq in the past, but...

Have already done most of the grounds, I'm going to add some too. The alternator doesn't have a dedicated ground so it will get one. Will check votage at alt later today. Video is with load....

Here's video of what it is doing, tach and voltage
https://youtu.be/tU6sImefRmQ

Ok so alternator came early. Put it in everything seemed fine, seemed to fix the problem, at first. I could run everything on no problem at idle, it would kick the idle up no problem like it's...

im leaning towards this. however having issues finding an ho that isnt craptastic ebay mitsubishi with mazda mounts. all the suggestions on older posts on this and other forums are either out of...

already have one on the way. i figured id continue the troubleshoot while i waited i dont like throwing parts at problems.

right. ive already ordered one, itll be here on the 16th. my sound system pulls max 2000, but usually about 1200 watts. if im listening at hearing damage volumes yes it will dim the headlights,...

However, with everything off, or only minimal load, such as running lights, or heater, and SOMETIMES low beam headlights, voltage is rock steady at 14.17 volts. Dips to 13.8 usually and goes back up,...

At first the voltage dropped to a low of 9.8 and a high of 14.5. adding the extra grounds limited the drop to a low of 12.3, and the high stayed the same, right around 14.5. I found a leak on the map...

I cleaned the purge valve, it was throwing a code because it was sticking. Testing it it now opens and closes no problem. And no code. I have not checked the egr. I will look into that. I have a used...

Right. It will push 80 amps (using a snap on alternator cart to test load) but voltage is all over the place, and as soon as I turn the knob to apply load it starts to hunt.

Just to clarify, I know there isn't a leak because I smoke tested the entire intake side. Just throwing that out. Also, I'm thinking more and more it might be voltage regulator. I have beefed up the...

to start, no it's not the throttle body, yes I've taken it off the car and cleaned both sides, yes I've disconnected the battery and gone through the relearn drive cycle, no there isn't a vacuum...