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Hey everyone, I have two questions about my B2B FAST w/ wide band. First: I did all my tuning in the fall/winter and now that the air temps are higher, my wideband is reading lean and the correction % is up in the 10-15% range. I've heard that I shouldn't mess w/ the air temp vs...

Hey guys, I was wondering if someone can take a look at a couple data logs and whole files and see what you guys think. The setup is: 502 BBC 1000cfm TB FAST b2b w/ WB 40lb/hr injectors 48psi fuel pressure I also have a NX plate kit. That's where I'm getting stumped. The...

Hey guys, I went to the track about three weeks ago and did some tuning and making good progress. I went back last weekend and now I'm alittle confused. The only changes was the outside air temp. The heat index was 108*, where the previous run it was probably 65*. Here is a picture...

Hey guys, I went to the track this past weekend and did some data logs. Is it recondmended to run closed loop at WOT for tuning? I was leaner than my target a/f ratio and the correction % was still in the negative. What do you guys think?

Hey guys, Has anyone compared their FAST wideband accuracy to other wide bands? Mine seems off. I was on the dyno and my FAST was reading 11.94 and the dyno was reading 12.5:1, this is with nitrous. While N/A, my FAST was saying 12.5:1 and the dyno was saying 13.0:1. So it's about .5...

Hey guys, I've hooked up the nitrous system using the FAST, but it's not engaging. The ecu recognizing the signal and the N20 enable switches from 0 to 1. But it doesn't seem like it's engaging the solenoids. I just have the fuel solenoid hooked up right now to see what the fuel pressure...

Hey guys, Can someone go through which wires go where on from the FAST ecu to the nitrous system? This is on a bank-to-bank ecu. I have a NX Hitman plate kit, purge, fuel pressure safety switch. I will be using the relays that came w/ the kit. Any help would be much appreciated...

Hey guys, Now that the weather is starting to cool down I can start tuning the really cold starts and warm-ups w/ my bank-bank FAST w/ wide band. Here's my setup: 502" 10.2:1 compression ratio 242/248@.050", .541/.562 lift, 112 lobe seperation 1000cfm TB 40lb/hr injectors My...

Hey guys, Every time I try and change the dash on any table, it freezes the table up. This happens when I'm running the software on the disc, and off the hard-drive. I've re-installed the software multiple times, still happening. Is there any way someone can send me new FAST software, or...

Hey guys, Ever since I've had my FAST the wide band has been reading rich compared to other hand held/dyno wide bands. If the FAST is saying 12.0:1, then the other wide bands are reading 13.0:1. I made sure there was a clean connection in the wiring harness and still had the problem. I...

Hey guys, I read awhile back that you need to get the wide band "calibrated" for the FAST? How do you do this? My FAST is reading about .9 richer than other wide bands I've used at the same time while using the FAST. I bought my system new, but don't know if the O2 was calibrated, or what...

Hey guys, I've had my FAST for almost 3 years and I haven't had time to get out to the track and tune much. I went out to the track last week and did some data logs. At WOT my air/fuel ratio is at 12.5:1. The motor is a 502ci BBC, N/A. I was getting less that 5% correction at WOT, but it...

Hey guys, Right now I have my electric fans on a relay and a thermostat, but want to hook them up to the F.A.S.T. I'm not good w/ wiring, so here's my question. The single wire I have going to my thermostat, can I just hook that wire up to the F.A.S.T and everything will be set to go...

Hey guys, Today I was messing around w/ the laptop and got the correctoin %s within 3% (+,-), then when I turn the truck off and turn it back on, it seems like it's way out of tune, going up to 20% correction in some spots. It seems to be only happening within the first 30seconds or so after...

Hey guys, What are "codes" listed in on the main dash? I have a code of 132 and sometimes 136? Anyone know what these mean?

Hey guys, I tuned my setup w/ the inlet air temp sensor not plugged in, and it runs pretty good, but when it's cold out, it runs rough. So I plugged in the sensor today and started to play w/ the VE map. When I plugged the sensor in, eveything leaned out, I had to add about 11% to get the...

Hey guys, I've had my F.A.S.T ECU in for about 2 years now, and I've never hooked up the inlet air temp sensor. Now I'm finally getting into the fine tuning, and I have it running perfect one day, then it seems when the outside air temp is cooler or hotter, it doesn't run the same. So, how...

Hey guys, I finally got my idle fixed to where it would actually go by what I have set on the idle speed vs. coolant temp. I had the IAC working too hard when it was warm, and it couldn't open any further when it was cold. But now I have a question. When it's cold and I first start it...

Hey guys, I have a question about my F.A.S.T computer and decelleration. I have the a/f ratio set at 14.5 when I get off the gas, and my VE numbers are around 50, but my actual air fuel is way lean at 15.9, but if I actually add VE numbers to match the 14.5:1 air fuel ratio, the numbers are...

Hey guys, I am having some troubles tuning my truck. During a cruise, I have the wide band set at 14.7:1, and I get my VE tables to close to 0% O2 correction, and it runs good. Then I turn off the truck and next time I start it, it runs crappy again. When I turn the truck off, the laptop...