Thread: Quirky turbo issues

Sorry I'm working from a phone,
I responded to your questions below in the yellow quote marker

my wideband does not require calibration.

My AFRs went super RICH when my MAF went bad Monday, 5 days ago. Minus the piss rich choppy acceleration from idle to 3k RPM, idle was at 10.5-11 from a previous perfect 14.7. After diagnosing all week ending up just probably 30 min ago installing my buddy's MAF off his z32...it's now been 100% confirmed my MAF is bad. So again, mine went SUPER rich with a bad MAF.

If you'd like I'll pop mine back on and make a video.

@Zeek234, you still never answered my now deleted question, what fuel filter are you running? Your wideband in the video looked off the charts lean the whole time, is that correct? And if I reread correctly, you're running an atmospheric BOV on a "stock-like" draw thru setup? As its already been said, that will cause issues. Your car won't run right, regardless, till you recirc that BOV or move your MAF to after turbo. Ask me how I know, lol! I quickly installed a bung and recirc'd mine. Don't worry, you and everyone else will still hear it!

Also, per the thread I have going and an ol Skool forum members experience, he said his motor never ran properly with one of the two MAF ground wires wired to the chassis. Soon as he twisted the two MAF grounds together and wired em into the harness his problem was solved.....just passin the info if uours is wired like that. Something to try.

Sorry to say though it's fairly useless to try and diagnose an issue when everything isn't hooked up legit. Recirc that BOV should be your goal for the weekend. In another thread, another old timer use JB weld to secure a bung on his IC piping, said its been holding for years.

@Zeek234 if you unplug your o2 the ECU will operate off a different fuel map. It'll simply feed fuel according to the map, not compensating in attempt to maintain proper AFRs....at least this is my experience with my b13.

I tested the maf.

.5v at accessories
At idle it is 1.2-1.4volts
I cleaned the maf as well. I have the two z32 ground wired soldered together and grounded to the chassis.

I have a stock wix fuel filter.

I do have to recirc the blow off this weekend. I'll post pictures of my piping setup.

I'm thinking these two recirculated into the intake


And put recirc bungs here along with the Bov recrication


I have not driven the car yet. It barely makes enough boost to activate blow off valve, so I just don't get how it's my demon but ill do it this weekend.
Also still confused as why it has compressor stall.

The car stalls out when maf is disconnected.

The code is still ghosting, it comes and goes I need to get someone with a obd-i reader

I'd pu a z32 fuel filter as well, just to be safe. That's just me, I'm neurotic.
MAF seems fine.
In your 3rd picture you say Recirc "these two...." what are they?
When I did mine I had a spare water neck housing, I hacked off the inlet and installed it on my intake. After MAF before turbo. Lucky me I had a buddy at the time who's MOTHER tigged it for me!!! Like said above somewhere, sort of angled towards the turbo and more importantly, not directed towards the MAF.

This one I'm no sure where to go with it the one off the valve cover is easy to recirc.



This hose goes into the intake