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View Full Version : Power FC installed Z32 maf and now running pig rich, insights?


lucas13dourado
05-29-2011, 01:34 PM
Alright guys, I looked around online a bunch and I can't find anything...
Today I installed a Z32 maf in my S14 Sr20det notch top and it runs like shit, super rich, the car won't idle, and it barely drives.
Yes I did change it to VG30 MAF setting in airflow
Yes I did try to lean it out in the inj correction
Yes I did wire it correctly. I am seeing ~3 volts at the signal wire and around 3300mv on the commander itself. I do have 12v at the power wire, the only thing I didnt check was the ground, I could suply a different ground and see what happens I guess.
Anyway, am I doing it wrong or what? I checked everything, boost leaks, vacuum leaks.
Some insight would be awesome, thanks.

HYPNOTIK
05-29-2011, 02:39 PM
You may need to adjust your MAF voltage curve. You want to set your target AFR's in the inj correction table then adjust your MAF voltage so that your actual AFR's match.

lucas13dourado
05-29-2011, 08:51 PM
I can do all of that with the commander only? or do I need the datalogit?

Crmann66
06-07-2011, 03:29 PM
Im having the same issue, starting to think the pfc wasnt worth it. Did you figure it out at all? Im dumping fuel below 10afr and cant get the car over 1k rpm and this equals no fun. If you found out what you needed to adjust, let me in on it as I will do the same, thanks

lucas13dourado
06-07-2011, 09:06 PM
Apperantly I wired it wrong... switch over the wires just to see.
there are 6 or 7 different wiring diagrams out there, so just try switching them around ( and leaving the grounds in obviously) and see what happens!

Crmann66
06-08-2011, 11:26 AM
Yeah I found a few different diagrams myself, I'm gonna screw with it again tonight, I'll let you know what happens lol
Thanks