Another SAFC related problem

[gstjoker]

I just recently installed a safc 2 onto my 2g gst. It came off of my buddies 2g gsx so when I finally got it on, the car had poor acceleration, almost feels like it's lagging then it'll start pulling. My car had not done this before I had the SAFC 2 installed. I decided to zero out my maft translator and had a buddy zeroed out the safc. We first zeroed out the safc and it fix just a little bit of the problem but it was still there and even after I zeroed out the maft, it's still giving me the same problem.

Current mods on the car are e3 16g, greddy 24r fmic, k&n filter, ngk bpr7es spark plugs and wires, afpr, full 3" no cat. exhaust, maft blow through, and everything else is stock. I checked the spark plugs and they're probably just 1 month old I want to say, and they have black deposits on them so I'm guessing the car is running rich?

The car was hitting fuel cut before I got the safc 2. After I adjusted the maft translator a little bit, fuel cut went away for 1st and 2nd gear. The only thing I'm using to tune will be my 2g logger (which I don't really know how to use and what I need to be looking for) and now the SAFC 2. Any ideas to help my car run back to normal would be great. Dyno tuning is in the future once I get my 650/680cc injectors and my 255 fuel pump.

My gas mileage went down a lot as well after the safc install for some weird reason if that matters. I already double checked the afpr to make sure it was at 43 psi with the vaccum hose off.

 

[Echo5Zulu]

The vehicle will run horribly until it is tuned. Search for "the definitive guide to piggyback tuning". It may also be on the vfaq.com site. After reading that and any other tuning threads you should be set on tuning.