$88 xdf VE table RBob?
02-03-2018, 12:36 AM
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$88 xdf VE table RBob?
I've been digging through the 88 hac trying to add BLM boundaries to the xdf. So far Ive only been able to locate the BLM v RPM table. While in there I was looking at the VE table starting location in the hac and it starts at 0x87EA, but in any of the 88 xdfs I have the table starts at 0x87ED. The low speed VE table is also off by a few places and before I go changing anything, I need to verify that Im reading this correctly. Thanks!
02-03-2018, 07:18 AM
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Re: $88 xdf VE table RBob?
The XDF is correct. The first three locations when starting at 0x87EA is the table header. Which you don't want to change, along with not wanting to include it as part of the actual VE data.
The firmware lookup routine requires the header to understand the table layout.
RBob.
The firmware lookup routine requires the header to understand the table layout.
Code:
; -------------------------------------- ; ; Idle/Low Speed VE% table ; ; rpm < 1600 AND in idle ; -------------------------------------- L87EA: FCB 48 ; start at 600 rpm, (48 * 12.5 = 600) FCB 0 ; map start FCB 13 ; columns ; map: 20 25 30 35 40 45 50 55 60 70 80 90 100 ; rpm: FCB 63, 66, 70, 73, 82, 89,101,104,113,119,127,133,139 ; 600 FCB 80, 83, 86, 86, 88,104,120,133,136,142,143,149,153 ; 800 FCB 82, 85, 88, 96,112,116,129,134,137,141,144,153,159 ; 1000 FCB 85, 88, 96, 97,113,118,131,134,137,143,147,156,172 ; 1200 FCB 133,136,144,145,161,166,179,182,185,191,195,204,220 ; 1400 FCB 149,152,160,161,177,182,195,198,201,207,211,220,236 ; 1600
02-03-2018, 07:58 AM
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Re: $88 xdf VE table RBob?
Ok. Good thing I didn't save any changes
Any idea where to find the BLM v MAP breakpoints table?
the hac shows BLM cell boundaries at 0x86F1,2,3..........but at 000006F1,2,3 there are scaler assigned to that. Is there a header for that table and how many spaces?
Thanks
Any idea where to find the BLM v MAP breakpoints table?
the hac shows BLM cell boundaries at 0x86F1,2,3..........but at 000006F1,2,3 there are scaler assigned to that. Is there a header for that table and how many spaces?
Thanks
02-03-2018, 08:25 AM
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Re: $88 xdf VE table RBob?
Code:
; -------------------------------------- ; coolant must be between these thres- ; holds for filtering to take place. ; -------------------------------------- 0x86ED 136 ; coolant threshold, 62c 0x86EE 255 ; coolant threshold, 151c 0x86EF 19 ; filter coef: blm cells 0 0x86F0 8 ; filter coef: blm cells 1 0x86F1 80 ; cell boundry, rpm threshold, 1000 rpm (rpm / 12.5) 0x86F2 255 ; cell boundry, rpm threshold, 6375 rpm (rpm / 25) 0x86F3 16 ; cell boundry, rpm threshold, 400 rpm (rpm / 25) 0x86F4 12 ; used to adj BLM cell val 0x86F5 10 ; blm stuff 0x86F6 128 ; blm stuff 0x86F7 26 ; blm stuff 0x86F8 13 ; tps threshold 0x86F9 255 ; vac threshold, blm boundry? 0x86FA 26 ; map threshold, closed loop?
02-03-2018, 08:30 AM
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Re: $88 xdf VE table RBob?
This is currently at address 6F1: Maximum RPM for BLM Learn at Idle (KLCRPM)
6F2:Maximum RPM to Allow any BLM Update (KBLMRPMH)
6F3: Minimum RPM to Allow any BLM Update (KBLMRPML)
Am I missing something?
6F2:Maximum RPM to Allow any BLM Update (KBLMRPMH)
6F3: Minimum RPM to Allow any BLM Update (KBLMRPML)
Am I missing something?
02-03-2018, 01:48 PM
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Re: $88 xdf VE table RBob?
There are only 3 BLM cells in this mask ($88). Idle, cruise, and decel. Selected by RPM, TPS%, and MPH.
Idle and cruise BLM values are filtered into another set of values. The filtered idle value is used during the next crank to start.
RBob.
Idle and cruise BLM values are filtered into another set of values. The filtered idle value is used during the next crank to start.
RBob.
02-03-2018, 02:21 PM
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Re: $88 xdf VE table RBob?
0,1,2.....yes I see those in the hac.
Im trying to disable cell 2, the decel cell, because of the bouncing between cell 1-2 during part throttle cruise, and causing surging.
I need to also adjust the break points which are not defined. So far only found blm boundaries vs RPM and I managed to get them to show in the xdf.
the low cell uses 12.5/rpm
the mid and high cells use 25/rpm
Once added in the xdf, I just used rpm/25 for all of those cells and they populate in the order that is shown in the code above. However, changing those values doesn't do anything. What am I doing wrong?
Im trying to disable cell 2, the decel cell, because of the bouncing between cell 1-2 during part throttle cruise, and causing surging.
I need to also adjust the break points which are not defined. So far only found blm boundaries vs RPM and I managed to get them to show in the xdf.
the low cell uses 12.5/rpm
the mid and high cells use 25/rpm
Code:
0x86F1 80 ; cell boundry, rpm threshold, 1000 rpm (rpm / 12.5) 0x86F2 255 ; cell boundry, rpm threshold, 6375 rpm (rpm / 25) 0x86F3 16 ; cell boundry, rpm threshold, 400 rpm (rpm / 25)
Once added in the xdf, I just used rpm/25 for all of those cells and they populate in the order that is shown in the code above. However, changing those values doesn't do anything. What am I doing wrong?
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02-03-2018, 10:35 PM
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Re: $88 xdf VE table RBob?
**SOLVED**
Cell 2 called Overrun cell in Saar's XDF. Not even defined in any other 88 definition I could find.
There are four qualifiers that will determine if in overrun cell 2:
High MAP
Low MAP
=========>>>To determine if part throttle or in overrun cell 2
High BPW
Low BPW
The MAP qualifiers are maxxed out at 104.xx kpa
The High BPW in AZTY was maxxed out
The Low BPW was 1.6ms
Injectors are not stock as those seized up. Replaced with larger bosch III injectors and that caused the LOW BPW to fall below the 1.6ms threshold. Lowered to 1.1 and still went into overrun cell. Lowered the low MAP to 25kpa and it remained in cell 1/0.
What a pain in the ***. Mainly due to the lack of notes in the xdf, lack of notes in the AZTY hack, and difficult to find in Saar's FWD hack. All day working with another member and just figured it out an hour ago. Phew!
Cell 2 called Overrun cell in Saar's XDF. Not even defined in any other 88 definition I could find.
There are four qualifiers that will determine if in overrun cell 2:
High MAP
Low MAP
=========>>>To determine if part throttle or in overrun cell 2
High BPW
Low BPW
The MAP qualifiers are maxxed out at 104.xx kpa
The High BPW in AZTY was maxxed out
The Low BPW was 1.6ms
Injectors are not stock as those seized up. Replaced with larger bosch III injectors and that caused the LOW BPW to fall below the 1.6ms threshold. Lowered to 1.1 and still went into overrun cell. Lowered the low MAP to 25kpa and it remained in cell 1/0.
What a pain in the ***. Mainly due to the lack of notes in the xdf, lack of notes in the AZTY hack, and difficult to find in Saar's FWD hack. All day working with another member and just figured it out an hour ago. Phew!
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