HPTuners/FAST Wideband integration?
05-07-2007, 06:35 PM
#1
TECH Fanatic
Thread Starter
iTrader: (14)
Join Date: Sep 2003
Location: Tennessee
Posts: 1,311
Likes: 0
Received 0 Likes
on
0 Posts
HPTuners/FAST Wideband integration? Has anyone integrated their FAST wideband into their HPTuners? I have been doing some readin on this but I am confused. The part I am confused about is the values that I should enter into both. The FAST documentation says that its range is 0-4.096. On HPTuners website, I see where the example uses 10 min afr and 18 max afr. What are the reasons these numbers are chosen?
05-07-2007, 11:56 PM
#2
TECH Fanatic
iTrader: (6)
Join Date: Jan 2002
Location: Springfield, IL
Posts: 1,194
Likes: 0
Received 0 Likes
on
0 Posts
I used this guy's equation when I had an issue with my LM1, and only had access to a FAST wideband. Worked perfectly for me. 
http://www.hptuners.com/forum/showthread.php?t=9140
http://www.hptuners.com/forum/showthread.php?t=9140
05-08-2007, 08:41 PM
#4
TECH Fanatic
Thread Starter
iTrader: (14)
Join Date: Sep 2003
Location: Tennessee
Posts: 1,311
Likes: 0
Received 0 Likes
on
0 Posts
OKay, I got the histogram and the custom PID programmed. When I scan the car and look at the histogram that I created, I just get 0.00 in a yellow box. This value never changes. What could be my problem? I went into the FAST and set it up as the highres setting which I think is right. Even when I look at my charts view in the HPTuners scanner I don't get a readout. Any suggestions??
05-13-2007, 02:37 PM
#7
TECH Fanatic
Thread Starter
iTrader: (14)
Join Date: Sep 2003
Location: Tennessee
Posts: 1,311
Likes: 0
Received 0 Likes
on
0 Posts
Okay I just made some progress. I realized that I hadn't inserted the PID into the table and that is why my histogram was not working. But now I have another question. In HPTuners I am getting a reading of like 9.72 for example and on the FAST dislpay I am getting a reading of like 14.xx. What would be the cause of this? Is that a part of the AFR correction I have read about?
Trending Topics
05-13-2007, 05:46 PM
#8
TECH Fanatic
Thread Starter
iTrader: (14)
Join Date: Sep 2003
Location: Tennessee
Posts: 1,311
Likes: 0
Received 0 Likes
on
0 Posts
Okay, now the HPTuners is logging an AFR a little closer to the FAST controller. Now it is like the FAST will read 14.0-16 and the HPTuners will read an AFR of like 12.8-13 something. I know this has to do with the voltage offset but I need to know the best way to get that reading. I need to make sure that 20.986 AFR is actually a 4.096 voltage output reading. I have tried connecting the multimeter to it but the wideband jumps around so much that I can't see what the voltage is at a specific AFR reading.
