Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 25

Thread: F.A.S.T. Dual Wideband Log Help

  1. #11
    Junior Member spedracr93's Avatar
    Join Date
    Jun 2016
    Posts
    43

    Default

    Quote Originally Posted by joecar View Post
    Hmm, odd, I can't replicate this problem... which V7 build version do you have (do Help->About)...? V7.5.7 (Build 299)
    Ok, so those ground wires are connected ONLY to AD1- and AD2- and to no other grounds, correct...?
    Correct

  2. #12
    Junior Member spedracr93's Avatar
    Join Date
    Jun 2016
    Posts
    43

    Default

    Quote Originally Posted by joecar View Post
    With two widebands, I've got my calc pids setup to choose the leanest wideband dynamically (on the fly)... I think you could use this.


    What PCM are you using...?


    Post your calc_pids.txt file here.

    PCM = 12200411 set up as 2001 Camaro w/manual trans


    calc_pids.txt

  3. #13
    Junior Member spedracr93's Avatar
    Join Date
    Jun 2016
    Posts
    43

    Default

    Quote Originally Posted by joecar View Post
    OK, this is what I was looking for.

    When stoich is commanded, what AFR does the FAST display say (does it say 14.7...?)...?
    When you say "stoich is commanded", do you mean when the PCM is commanding 14.7, does the FAST display read 14.7? The answer is no, but the car is running really rich. So at warm idle, the PCM is commanding 14.63 and the FAST display is around 12.5. There is absolutely nothing steady about the readings either. They're moving so fast on the decimal side, I can barely tell what the range is. Typically it looks like it bounces between 12.2 and 12.8.

    Just as a backup I've been plotting my onboard O2 sensors as well and they're usually pegged around 900 except when the PCM commands something in the 15 or 16 range, such as during deceleration.

  4. #14
    Member
    Join Date
    Oct 2005
    Posts
    86

    Default

    Quote Originally Posted by spedracr93 View Post
    Jetmech442,

    Then it asks you if you want to utilize the analog output mode. I am selecting yes.
    Why use analog when FlashScan accepts digital with fewer issues?
    97 Vette 6spd, CamMotion Titan2 LS1 cam, TSP 5.3 StageII heads, Vararam intake, Z06 manifold, ARH headers/cats, Z06 catback, Monster Stage2 clutch, 04 Z06 pcv, new style knock sensor(late98 to 04).

    Using FlashScan V1 with NGK-AFX Wide band

  5. #15
    Junior Member spedracr93's Avatar
    Join Date
    Jun 2016
    Posts
    43

    Default

    Quote Originally Posted by voda1 View Post
    Why use analog when FlashScan accepts digital with fewer issues?
    So, how do I get the FAST dual WB to output a digital signal for the V2?

  6. #16
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Quote Originally Posted by spedracr93 View Post

    PCM = 12200411 set up as 2001 Camaro w/manual trans


    calc_pids.txt
    ( are you using the VE pid...? we have a much better VE pid now )

  7. #17
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Quote Originally Posted by spedracr93 View Post
    When you say "stoich is commanded", do you mean when the PCM is commanding 14.7, does the FAST display read 14.7? The answer is no, but the car is running really rich. So at warm idle, the PCM is commanding 14.63 and the FAST display is around 12.5. There is absolutely nothing steady about the readings either. They're moving so fast on the decimal side, I can barely tell what the range is. Typically it looks like it bounces between 12.2 and 12.8.

    Just as a backup I've been plotting my onboard O2 sensors as well and they're usually pegged around 900 except when the PCM commands something in the 15 or 16 range, such as during deceleration.
    What AFR does the FAST display when in Closed Loop...?

    ( I'm trying to find out what stoich AFR is assumed by the FAST )

  8. #18
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Is FAST listed in the V8 S&T Serial Device Wideband Types...?

  9. #19
    Junior Member spedracr93's Avatar
    Join Date
    Jun 2016
    Posts
    43

    Default

    Quote Originally Posted by joecar View Post
    ( are you using the VE pid...? we have a much better VE pid now )
    I guess not. I built the PID from the tutorial. When I go through the list of PIDs, it seems like they're all specific for WB brand, so that's why I made my own. Which PID are you referring to as the VE PID?

  10. #20
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Quote Originally Posted by spedracr93 View Post
    I guess not. I built the PID from the tutorial. When I go through the list of PIDs, it seems like they're all specific for WB brand, so that's why I made my own. Which PID are you referring to as the VE PID?
    This one:
    *CLC-00-003
    % 0.0 100.0 .2 "{SAE.MAF.gps}*({GM.DYNAIRTMP_DMA.C}+273.15)*3445. 2/(displacement()*{SAE.RPM}*{SAE.MAP.kPa})*{CALC.LTF TBEN}"
    VE 0.0 3.0 .4 "{SAE.MAF.gps}*({GM.DYNAIRTMP_DMA.C}+273.15)*1 5/({SAE.RPM}*{SAE.MAP.kPa})*{CALC.LTFTBEN}"
    has been superceded, see this calc_pids.txt from the Calc.VET thread, post #1.

Page 2 of 3 FirstFirst 123 LastLast

Similar Threads

  1. Dual fueler SURGE AT WOT issue ECM overcorrecting? PID LOOP?..Log Inside
    By Dmaxink in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 5
    Last Post: June 26th, 2012, 08:18 AM
  2. Dual Fast Wideband
    By minytrker in forum General (Petrol, Gas, Ethanol)
    Replies: 0
    Last Post: February 18th, 2010, 03:37 PM
  3. need help installing fast dual wideband
    By red83 in forum General (Petrol, Gas, Ethanol)
    Replies: 15
    Last Post: December 19th, 2008, 06:01 AM
  4. Anyone try the FAST dual wideband setup?.................
    By FreddyG in forum General (Petrol, Gas, Ethanol)
    Replies: 15
    Last Post: December 23rd, 2007, 04:08 PM
  5. dual mode wideband
    By stigmundfreud in forum General
    Replies: 3
    Last Post: July 2nd, 2007, 05:25 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •