Megasquirters, please help!

[jjk1224]

Ive got the mapdaddy 4 dual baro sensor and the LC-2 wideband with the Innovate gauge, on the B3.

[shorestiva]

Does your wide band gauge match the tuner studio reading?

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[jjk1224]

Yeah, the gauges match. I’m not sure if you’re familiar, but the LC-2 has two different outputs. A 0-5v reference (7.3-22.4 AFR) and a 1.1-.1v (14-15 AFR). I’ve been using the 0-5v because I assumed the other was to emulate a narrowband.

[jjk1224]

Just wanted to do an update for anyone who may stumble upon this thread or for anyone interested in my progress. Since the car ran perfectly fine before the swap and since I have had the car running, idling and even driven it around my neighborhood a few times... It never crossed my mind that I may have had less than ideal fuel pressure. I've been out of town for work the past 2 weeks, so I have not had a whole lot of time to mess around with it, but when I got home I decided to start over back at the basics. Couldn't find my pressure gauge, so first thing I did was go to HF and pick up their cheap kit. Plugged it up, key on and running... 0 PSI!
I cant believe that the car actually ran decently and was able to maintain a proper AFR without pressure in the fuel rail...
Anyway, I didn't realize (until checking the fuel pump circuit 5 times) that there is a switch internal to the VAF that controls the fuel pump. Jumped the GRN/RED wire to one of the blacks (ground) and now I have pressure and she purrs like a kitten!

[shorestiva]

Lol. Does you fuel map look better now?

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[jjk1224]

Looks 100% better! Ive been running around the last couple days doing some auto tuning, it seems to be dialing itself in quite nicely. I have my idle set kinda high right now, the load of the headlights and radiator fan together causes the car to stall at night.

[bhazard]

Not running IAC?

[jjk1224]

Not yet. Ive got it wired in, its just turned off. :laughing1: