'FIRST' intake 383 tuning help
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
You have the WB run through your Autoprom? I would guess the error is in there somewhere.
I wired in the WB output to pin D8 on my ECM, and it just worked. I transferred all my bin data to the ARAPWB, and added the wideband o2 item to the ADX, and everything worked fine. There was a little bit of discrepancy between the gauge and Tunerpro, but nothing to worry about.
I wired in the WB output to pin D8 on my ECM, and it just worked. I transferred all my bin data to the ARAPWB, and added the wideband o2 item to the ADX, and everything worked fine. There was a little bit of discrepancy between the gauge and Tunerpro, but nothing to worry about.
I looked at my ECM, pin D8 is occupied, but D9 isn't. Can I use D9?
Last edited by gbayfisher; Aug 29, 2011 at 10:34 AM.
Re: 'FIRST' intake 383 tuning help
I'm skeptical about pin D8 being occupied. Yours *should* be the exact same ECM as mine...
As Orr suggested, try exporting the data and viewing it in excel. That may tell you whether its not recording right, or just not playing back right.
As Orr suggested, try exporting the data and viewing it in excel. That may tell you whether its not recording right, or just not playing back right.
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
If there is only one D8 , I am sure it is occupied, I looked and looked, it has a green wire going to it. I will take another look tonight. 'Just' incase!
Thx!
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
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Re: 'FIRST' intake 383 tuning help
according to the wiring diagram for the 86 maf stuff, D8 and D9 are NOT used so you shouldnt have a wire there. 87-89 should be similar
http://www.eecis.udel.edu/~davis/z28...165v8tpi-6.jpg
http://www.eecis.udel.edu/~davis/z28...165v8tpi-6.jpg
Thread Starter
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
i checked the ecm connector, and d8 is clear, not sure what the h33l I was looking at when I last looked.I just need to go out and find a terminal now, and try it this way.
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
I have a terminal!
Its all wired up, and ready to go. I have an arapWB bin ready to go but it is now outdated by my newer bin. How do I copy everything from my working bin over to the arapwb bin?
Its all wired up, and ready to go. I have an arapWB bin ready to go but it is now outdated by my newer bin. How do I copy everything from my working bin over to the arapwb bin?
Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: 'FIRST' intake 383 tuning help
remember what you changed and manually input everything again 
Thread Starter
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Joined: Jan 2010
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Thread Starter
Senior Member
Joined: Jan 2010
Posts: 820
Likes: 1
From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Thread Starter
Senior Member
Joined: Jan 2010
Posts: 820
Likes: 1
From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
Just getting into the adx file for the WB data logging through pin D8.
I am using these ADX settings from another adx file, I am not getting a reading on tunerpro however.
Does this look right?
I am using these ADX settings from another adx file, I am not getting a reading on tunerpro however.
Does this look right?
Re: 'FIRST' intake 383 tuning help
Try logging with the .adx provided with the ARAP-WB download.
The most important part of the datastream definition is the packet offset. If that's right, and you're running the ARAP-WB bin, and your wideband is putting out the right voltage range, you should get a number on your tunerpro dash, even if the equation and labels aren't entered right.
The most important part of the datastream definition is the packet offset. If that's right, and you're running the ARAP-WB bin, and your wideband is putting out the right voltage range, you should get a number on your tunerpro dash, even if the equation and labels aren't entered right.
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
Try logging with the .adx provided with the ARAP-WB download.
The most important part of the datastream definition is the packet offset. If that's right, and you're running the ARAP-WB bin, and your wideband is putting out the right voltage range, you should get a number on your tunerpro dash, even if the equation and labels aren't entered right.
The most important part of the datastream definition is the packet offset. If that's right, and you're running the ARAP-WB bin, and your wideband is putting out the right voltage range, you should get a number on your tunerpro dash, even if the equation and labels aren't entered right.
I just tried with a fresh arapwb bin and the adx file that it comes with, still stuck at 7.35 with no movement.
Wb is suppling up to 5v, so i know the voltage is there.
Everything seems to be in place, but no go.
Its obvious I made a mistake somewhere, just have to find it!
What are your packet settings?
Re: 'FIRST' intake 383 tuning help
I just tried with a fresh arapwb bin and the adx file that it comes with, still stuck at 7.35 with no movement.
Wb is suppling up to 5v, so i know the voltage is there.
Everything seems to be in place, but no go.
Its obvious I made a mistake somewhere, just have to find it!
What are your packet settings?
Wb is suppling up to 5v, so i know the voltage is there.
Everything seems to be in place, but no go.
Its obvious I made a mistake somewhere, just have to find it!
What are your packet settings?
I'm not sure what mine looks like... I'm not near my computer, and I haven't looked at tuning stuff for a month now, its been all transmission stuff
Maybe you have the wrong output wire hooked up to the ECM? I know on mine, the color coding on the wires was really confusing, and I had to pay really close attention to which wire was which on the gauge and the controller. Seems like that fancy new wideband you got would be simpler than my old outdated LC-1 though
Last edited by 88gunmetalgta; Aug 30, 2011 at 09:41 PM.
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
Did you not get your trans redone?
Re: 'FIRST' intake 383 tuning help
I just got my trans put back in on Friday. I have to trailer it to the trans shop tomorrow to get the warranty validated, and then it'll be back on the road. I'm gonna do all the PE tuning I can without a dyno, and then work on that mid-throttle acceleration lean spot/knock retard problem I've got.
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
Ahh, I thought you weren't getting the reading through the ECM, not just the issue with log playback... If its kinda the same deal you were getting with your LM-1, it would indicate a problem with Tunerpro itself. You might try reinstalling the software.
I just got my trans put back in on Friday. I have to trailer it to the trans shop tomorrow to get the warranty validated, and then it'll be back on the road. I'm gonna do all the PE tuning I can without a dyno, and then work on that mid-throttle acceleration lean spot/knock retard problem I've got.
I just got my trans put back in on Friday. I have to trailer it to the trans shop tomorrow to get the warranty validated, and then it'll be back on the road. I'm gonna do all the PE tuning I can without a dyno, and then work on that mid-throttle acceleration lean spot/knock retard problem I've got.
I hope the tranny works out for you! We all seem to be chasing the same mid throttle accel lean spots. I solve it by by-passing mid throttle, and just go WOT instead!!
Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: 'FIRST' intake 383 tuning help
if your careful you can watch wideband and rpm at the same time No need for logging.
No need for logging. Thread Starter
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
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Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
I have also used my wife to video the screen while I drive! Problem is keeping her hand steady when i drop the hammer, lol.
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Re: 'FIRST' intake 383 tuning help
"Problem is keeping her hand steady when i drop the hammer"
Hahahaha, I can see where that would be a problem.
Hahahaha, I can see where that would be a problem.
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
Does anyone here know the best table/scalars to hit for some rpm hanging during cruising speed?
This usually happens as the engine gets warmer and warmer, i start seeing some higher than usual rpm that acts as a cruise control, and doesn't settle off until I am stopped, even at that point it hangs from time to time.
All mechanicals in TB are good, no sticking throttle blades, IAC is new.
I would like the responsiveness that I see when the engine is cooler. Should i be looking at the dfco scalars or the stall saver settings?
What indicators should i look for that might point me in the right direction?
This usually happens as the engine gets warmer and warmer, i start seeing some higher than usual rpm that acts as a cruise control, and doesn't settle off until I am stopped, even at that point it hangs from time to time.
All mechanicals in TB are good, no sticking throttle blades, IAC is new.
I would like the responsiveness that I see when the engine is cooler. Should i be looking at the dfco scalars or the stall saver settings?
What indicators should i look for that might point me in the right direction?
Last edited by gbayfisher; Aug 31, 2011 at 06:23 PM.
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
Update:
I tried using an older wb.adx I had here.. Low and behold... the wideband through d8 of the ecm works now! I wish I knew exactly what caused the problem but i was changing a few things around at the same time ( I know) one change at a time!
I think the issue was in the dash, I had the setup correct all along but it just did not display properly.
thx for the help
I tried using an older wb.adx I had here.. Low and behold... the wideband through d8 of the ecm works now! I wish I knew exactly what caused the problem but i was changing a few things around at the same time ( I know) one change at a time!
I think the issue was in the dash, I had the setup correct all along but it just did not display properly.
thx for the help
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
Transmission: t56
Axle/Gears: 4.11
Re: 'FIRST' intake 383 tuning help
Does anyone know where the location of the Throttle follower(s) are in $6e mask. The only T/F i see is the 'IAC steps added to TF in drive', so it looks like this value is added to another table, but where is the main TF table or constant?
I am trying to settle the speed of the engine during an off throttle coast.
I am trying to settle the speed of the engine during an off throttle coast.
Last edited by gbayfisher; Sep 16, 2011 at 05:35 AM.
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Re: 'FIRST' intake 383 tuning help
Does anyone know where the location of the Throttle follower(s) are in $6e mask. The only T/F i see is the 'IAC steps added to TF in drive', so it looks like this value is added to another table, but where is the main TF table or constant?
I am trying to settle the speed of the engine during an off throttle coast.
I am trying to settle the speed of the engine during an off throttle coast.
Code:
;----------------------------------------------
; THROTTLE FOLLOWER GAINS
; TYPE $6E MY89 L98 ARAP
;
; (msec/6.25)
;----------------------------------------------
LC555 FCB 5 ; 31 msec BETWEEN STP'S IN PK/NEUT
LC556 FCB 4 ; 25 msec BETWEEN STP'S IN DRIVE
; arg = msec/6.25
;
LC557 FCB 7 ; 1326 usec ADD TO TIME BETWEEN FOLLOWER IN DRIVE
; arg = msec * (32/6.25)
;
LC558 FCB 8 ; 50 msec ADD TO TIME BETWEEN FOLLOWER IN OPEN LOOP
; arg = msec/6.25
;
LC559 FCB 192 ; 150 STEPS/%TPS, TPS FOLLOWER SLOPE GAIN
; arg = STEPS/%TPS * 1.28
;
LC55A FCB 75 ; 75, MAX STEPS IN DRIVE
;
LC55B FCB 255 ; 0.996, PK/NEUT STEPS/DRIVE STEPS TF MULT
; arg = VAL * 256 Thread Starter
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From: Ontario
Car: 1987 Trans am GTA
Engine: D1sc 383
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Re: 'FIRST' intake 383 tuning help
These guys:
RBob.
Code:
;----------------------------------------------
; THROTTLE FOLLOWER GAINS
; TYPE $6E MY89 L98 ARAP
;
; (msec/6.25)
;----------------------------------------------
LC555 FCB 5 ; 31 msec BETWEEN STP'S IN PK/NEUT
LC556 FCB 4 ; 25 msec BETWEEN STP'S IN DRIVE
; arg = msec/6.25
;
LC557 FCB 7 ; 1326 usec ADD TO TIME BETWEEN FOLLOWER IN DRIVE
; arg = msec * (32/6.25)
;
LC558 FCB 8 ; 50 msec ADD TO TIME BETWEEN FOLLOWER IN OPEN LOOP
; arg = msec/6.25
;
LC559 FCB 192 ; 150 STEPS/%TPS, TPS FOLLOWER SLOPE GAIN
; arg = STEPS/%TPS * 1.28
;
LC55A FCB 75 ; 75, MAX STEPS IN DRIVE
;
LC55B FCB 255 ; 0.996, PK/NEUT STEPS/DRIVE STEPS TF MULT
; arg = VAL * 256 I am not near my tunerpro until later this evening, but I don't think these are in any of the expanded adx files. Seems to me that these are important tables to have exposed for adjusting/tuning. I will take a closer look later today.
Thx
Re: 'FIRST' intake 383 tuning help
Code:
;----------------------------------------------
; THROTTLE FOLLOWER GAINS
; TYPE $6E MY89 L98 ARAP
;
; (msec/6.25)
;----------------------------------------------
LC555 FCB 5 ; 31 msec between IAC steps in Park/Nuetral
LC556 FCB 4 ; 25 msec between IAC steps in Drive
; arg = msec/6.25
;
LC557 FCB 7 ; 1326 usec ADD TO TIME BETWEEN FOLLOWER IN DRIVE
; arg = msec * (32/6.25)
;
LC558 FCB 8 ; 50 msec ADD TO TIME BETWEEN FOLLOWER IN OPEN LOOP
; arg = msec/6.25
;
LC559 FCB 192 ; 150 STEPS/%TPS, Throttle Follower slope gain by TPS
; arg = STEPS/%TPS * 1.28
;
LC55A FCB 75 ; 75, MAX Throttle Follower STEPS IN DRIVE
;
LC55B FCB 255 ; 0.996, Throttle Follower Gain Multiplier
; arg = VAL * 256 There's also DFCO, Decel Enlean, and Stall Saver Follower scalars in the one I have.
Last edited by 88gunmetalgta; Sep 16, 2011 at 11:45 AM.
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Re: 'FIRST' intake 383 tuning help
It seems like its gotta be the signal from the throttle position sensor/Incorrectly programmed for the increased demand,bad potentiometer?panhead201
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From: Ontario
Car: 1987 Trans am GTA
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Re: 'FIRST' intake 383 tuning help
Thanks for the help everyone.
I added these parameters to my xdf, It seems to all be there now.
I hope I can make good use of it now!!
I added these parameters to my xdf, It seems to all be there now.
I hope I can make good use of it now!!
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Re: 'FIRST' intake 383 tuning help
Same with the TCC lockup (if used).
RBob.
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Car: 1987 Trans am GTA
Engine: D1sc 383
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Re: 'FIRST' intake 383 tuning help
Its going to take many small changes.
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From: canada,quebec,st-jerome
Car: camaro iroc-z 89
Engine: 383 HSR SC MegaSquirt
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Re: 'FIRST' intake 383 tuning help
hi , this is the spark table for your 383 right ? can i use this for my engine? ived got a 383 also...
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From: canada,quebec,st-jerome
Car: camaro iroc-z 89
Engine: 383 HSR SC MegaSquirt
Transmission: tko 600
Axle/Gears: 9 Inch 3.75
Re: 'FIRST' intake 383 tuning help
hi , this is the spark table for your 383 right ? can i use this for my engine? ived got a 383 also...
Re: 'FIRST' intake 383 tuning help
Displacement doesnt have much at all to do with spark advance. Much more important are things like head material and design, compression ratio, and fuel type.
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