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Update, catastrophic issue. What I was up to today was pressurizing the intake again, had closed up the pcv going into the valve cover but opened it up again by accident under 5 psi (clamp opened by the slightest touch), didn't think much of it. That escapade didn't result in anything...

Had let the car warm to operating temp out of curiosity to check whats the situation. Will go for a quick drive to see if values change. I wonder if it's because I was messing with the brake booster hose bit.

Maybe my testing aparatus making a tiny leak which is causing the sound. Will retest with a flange instead, though in the meantime I'd like to order that brake booster seal then retest after. I'm not really familiar with whatever seal those specific lines use, but I assume someone out there done...

Alrighty so far found one, but still can hear pressure being relieved elsewhere. Pressurizing up to 6psi, goes down to around 0. Anyone know what seal I should purchase for this vacuum line to the brake booster?

Just a bit of an update, haven't done anything but went to go for a cold start and got a cel being p0300. Startup had a little hiccup but after rpms leveled, sounded fine. Fuel trims at operating temp on idle is now 8.59% long term. When it started, was 11%. After a short drive, came home with...

I'll figure out how to log with forscan tomorrow, will first wait for the adapter I need to pressurize the intake and hunt for leaks there and go for a drive after. I don't know how much more data is needed for just idle stuff though, felt like the snapshot was enough

Don't think so, like I said values used to be 7%, the photo taken of my center display was from a month ago with the same setup as now. One thing that's a mystery to me is why stft DROPS to -25%, bogging the car down whenever blipping the throttle. I maybe wrong but I feel that could narrow...

Have not done a proper boost leak test since I'm waiting on some fitting to adapt my tire compressor since it's what I have on-hand. I did pressurize it with the power of my lungs to find the first leak which I described above, but anything at higher pressures, not yet and will give the news...

I was mainly focused on idle values since I assume 14% on long term is pretty high than what it's supposed to be. (I assume in the +/- 7% range). The throttle blip was just a weird one since it plummets to -25% and that's just super weird to me, I wouldn't know what to look for first. For...

After going out for a drive after resetting the ecu (battery off for a few secs) ltft is now at 12% and stft hovering 0 plus or minus 2% deviation. Better than 14 which I was getting before, will keep looking for leaks

Wondering where you sourced your o-ring from? Tracking down vacuum leaks on my end aswell

Year/Make/Model: 2007 Mazdaspeed3 Mileage: 230k (engine rebuild 30k~ miles ago, prev owner) Location: ATL, GA Concern: Fuel trims out of whack DTC's: (please include descriptions) None Modifications: Forged Pistons (Unknown Details) Cobb Cold Air Intake Balance Shaft Delete Upgraded High...

Cool thing I found the other day, aa-torque let's you display some pid's from torque pro into a really nice gauge that you can use with android auto. Making it look pretty neat I'd say! I'll be working on trying to make a mazdaspeed gauge theme but seems there isn't an option to change the text...

The radio's orange strip is tinted orange plastic so that can't be changed. The rest are smd led's so you'd have to find similar led's on digikey and throw them in. You'll need to know how to solder and use hot air for smd components like these. I don't think they used bulbs here. Edit: this...

Glad someone else had the idea before me! You don't really need the OG harness with the wiring diagram, if you cross reference the color codes I gave, and the photos of how the connectors go together, you can kinda make out what pin goes to what. Or just use the numbering system the schematics...

I'm in Georgia!

It's vent to atmosphere, I have a check valve on it point outward. That's the one from valve cover to the intake. The one from the block to the intake manifold is closed.

What's r9?

First off current mods/spec (that are relevant): 2.5l duratec swap mishimoto occ vented occ (generic) short ram intake factory k04 @231k miles (being replaced december) Current OCC setup (Note: I still have the factory pcv plate instead of the damond): So the observed issue I'm seeing is...