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While taking time to look at the data while it was attempting to run i noticed a curious thing. VPWR 11.93v drops to 9.8v at start and stays there until the engine starts to die. GENVDSD calls for 14.06v and ALTT V(V) is 12.38 but VPWR doesn't start to increase until after the engine starts to...

No change with o2 sensors disconnected. I have attached a Forscan Lite data log and car information pulled from Forscan. Would an issue with the condensor (as shown on the same circuit as the Bat + of ignition coils) cause these ghost issues? I see it is a capacitor but what does it do for the...

The o2 is the original when I picked the car up. Which ran, but only on 3 cylinders lol. Still no codes. :( I will give unplugging the o2 sensors a shot tomorrow and will report back.

Yeah. Just checked every ground i could find. I'm going to check the crank and cam position sensor per the manual. Once I verify them, am I looking at a possible pcm. Just based on this thread. I know it's tough to say without being here and putting hands on yourselves.

All coil harnesses check good to pcm, Bat + when key on, and Ground checks good. Hopefully these videos come through. Because it's weird. Got the battery on a charger. Strong spark on 1 and 3, weak on 2 and intermittent on 4. In the first video. Swapped 1 to 4 and 2 to 3 then retest. 2nd...

Decided to get back to basics after not finding anything with the 02 sensor and the ac pressure switch. The compression test was 160 to 165 psi on all cylinders on the cold engine. While doing the compression test, I decided to do a spark test. Originally, I used an inline spark tester and...

Haven't done a wiring check off the O2 sensors but it's on the list. Since I was unsure the quality of the injectors manufacturer, I wanted to check resistance. Fuel injectors resistance Manual States 1.0 to 1.2 ohms at 65 degree F #1 1.3 ohms #2 1.3 #3 1.3 #4 1.2 Ambient temp is 55 degrees...

I checked the harness connections for the 02 sensors. Theyre connected and no obvious signs of wire damage. Hooked up torque and was looking at the 02 sensor and found something odd (I think). Should the catalyst temp bk1 sensor 1 be 1000 degrees? No start attempts, only one key on engine off...

lol! No it can't be haunted. no worries. I am going to call it for today. Tomorrow I will double check my 02 sensor connections and look into the 02 sensor data. I may cruise the junkyards in Indianapolis to see if any of them have a MAF for a test article.

Just rechecked codes and got. U2023 for the abs module.

The immobilizer light does flash every few seconds with the key off and does go out when starting.

Forgot to add: Yes, I did attempt an unplugged MAF start. It did not start :(

I could not find a few of the parameters in torque pro: ignition timing, MAF voltage. Will the forscan software or the access port show those? I may just need to wait to provide that. Two logs attached, the first, forgot to add engine rpm. Both runs the engine fired and went to >1500 rpm for...

I will head back to the garage momentarily Engine bay photos!

Ok. Battery fully charged and tested! Fresh 93 octane fuel in the tank. While I was learning how to use torque, the engine fired and went to ~2k rpm for ~3 seconds (cold idle due to it being 45 this morning?). The engine sounded fine, no mechanical noises or stumbles until it shut off again. So...

Thank you! I do have torque pro but had issues connecting. Finally got it to connect and of course I let the battery run down too much lol. So on the charger. Will report back tomorrow.

Hey All! Just got the notifications for this. I'm working on a better interface for logging. The terminology maybe wrong for the hpfp. The dump valve? Using the Corksport install instructions, you flip it upside down (connector side) and use a 9mm socket to press the valve body down to...

Video of one cycle.

Hi Mazda Pros! Year/Make/Model: 2009 Mazdaspeed3 Mileage: 171000 Location: Indiana Concern: cranks, briefly fires then dies DTC's: none Modifications: see below ECU/Tuning Software: stock Tuner: n/a Is the concern intermittent? No Can you duplicate the concern? Yes Recent Repairs: see below. :)...

Thank you!