Guys,

finally got the Tunerpro to communicate the the ECM, but the logging speed is approx 0.7Hz....or a sample every 2 seconds approx

I have the MOATES cable etc and it has the need for the resistor to be across the terminals.

I tried switching the resistor off, but then there was no communication.

as always, advice appreciated.

 

You need to use a $32B 8192 baud adx file, a cable w-10 k resistor and click the connect button to put the ecm into 8192 baud mode.

Note: A $6E 8192 baud adx file will also work since the datastream is largely the same between $32B and $6E.

Sounds like you are using a 160 baud adx file and logging 160 baud data.

I can send you an adx file if necessary, but shouldn't be too hard to find a good one.

 

I have the MOATES ALDU1 and CABL1 (it has the switch for the 10K resistor).

Would really appreciate you sending me the $32B file as I could only find the one off Tunerpro's website and used that.
Isn't that supposed to be a .XDF file?
Thats what's on the Tunerpro website download section for my car. (87 corvette).
They call it the "BIN Definition"
I understand that turns the ECM language into everyday english?


Also struggled to find a .ADX file - tunerpro has an .ADS file which (after a lot of frustration) i learnt you can convert to an .ADX
I used their .ADS, converted it to .ADX within the Tunerpro software and then I could monitor the ECM's data - but at a very slow rate.
They call the .ADS the "Datastream definition"

Once I got that running (in slow mode) there was still a lot of messing around to display the data in real time - still haven't figured how to graph any data yet...

Do appreciate your help.

 

Rename the attached file to *.adx and give this a whirl. I changed the extension to txt so that it would let me attach the file.

Let me know if you have trouble connecting or if the data flickers.

I downloaded my own file and tested it on my kid's Windows 10 laptop. It works, but Windows 10 still thinks its a text file. You will need to change the file type when loading the definition in TunerPro, so that you can see/select the appropriate file, but should work.

 

Thanks heaps!

I'll try it on the vehicle over the weekend.

I imported it to tunerpro without it connected to a vehicle - it seems to show both files????
do I need to "unimport" or delete the previous one?

 

Not sure I'm following....Just use Load definition file... under the Acquisition tab to load the new file. You should not need to use the import function.

 

Yep,

did that,

loaded sucessfully

Does this file do anything for graphical display of the data?

Will try using it over the weekend...many thanks

 

Worked perfectly - thanks so much!

Well the logging did anyway!
Can I email you the file for your opinion, as it seems like the MAF isnt seeing the Burn off?

Don't know how it cant be seeing the burn off, as its the same wiring to send load info from the MAF to the ECM.

 

Keep in mind that burnoff doesn't happen until 5 seconds after the key is turned off. It only lasts for 1 second, so it's easy to miss it.

 

Cliff,

thanks for the reminder....

Something funky seems to be happening in the Mass Air Flow Tables...there are 6 of them..

There seems to be no consistency- as in as volts increase, g/sec doesn't.

Is it possible someone's screwed around with these before me?
may not be std, but it looks awfully bad....

May be completely unrelated, but the further I dig, the worse this gets..

 

Hope you can see this, but there is several very weird "jumps" in the g/sec.....
I'm assuming these are the tables the ECM uses to convert volts to g/sec?
They tables are (from L to R) Mass Air flow tables 1 to 6.

Comments???

 

MAF tables should be very linear, as volts goes up so should g/sec. Your tables are very radical in some areas and seem to be over tweaked . I guess someone at some point attempted to make adjustments to the tune to compensate for engine mods.
I would recommend finding a stock BIN for your year of Vette and compare the values. Best choice would be to burn your prom with stock values and start fresh again.

 

You have some kind of mismatch between the bin and the xdf, so the MAF tables that you have displayed are showing the wrong data. Not sure what bin file you have open, but suspect its a different mask.

Use the monitor panels to display the MAF and MAF raw values graphically.

send me a copy for your xdl file or post it here: mr_tequilaboy@sbcglobal.net

Standard $32B MAF tables for reference (kind of hard to read in this format, but the info is there):

;---------------------------------------------------
; Mass Flow Table 1 0 - 511 cts
;
; Table Value = Grams Air/sec
;
; Num = Arg + 256/Scalar
;---------------------------------------------------
LC6A3 FCB 23 ; Table SCALER Multiplier
;
LC6A4 FCB 8 ; 9 Lines in Tbl.
;
;----------------------------------------
; gms/SeC BIN VDC #/HR
;----------------------------------------
LC6A5: FCB 93 ;
FCB 36 ; 3.2 64 0.18 25
FCB 50 ; 4.5 128 0.37 35
FCB 69 ; 6.2 192 0.55 48
FCB 93 ; 8.4 256 0.73 65
FCB 121 ; 10.9 320 0.91 84
FCB 155 ; 14.0 384 1.10 108
FCB 197 ; 17.7 448 1.28 137
FCB 248 ; 22.3 512 1.46 172
;----------------------------------------
;--------------------------------------------------
; Mass Flow Table 2 512 - 767 cts
;
; Table Value = Grams Air/sec
; Num = Arg + 256/Scalar
;---------------------------------------------------
LC6AE: FCB 48 ; Scalar
;
LC6AF: FCB 8 ; 9 Lines in Tbl
;
;----------------------------------------
; gms/SeC BIN VDC #/HR
;----------------------------------------
LC6B0: FCB 119 ; 22.3 512 1.46 172
FCB 133 ; 25.0 544 1.55 193
FCB 147 ; 27.6 576 1.65 213
FCB 163 ; 30.6 608 1.74 236
FCB 182 ; 34.1 640 1.83 264
FCB 198 ; 37.1 672 1.92 287
FCB 217 ; 40.7 704 2.01 314
FCB 237 ; 44.5 736 2.10 343
FCB 254 ; 47.7 768 2.19 368
;--------------------------------------------------
;--------------------------------------------------
; Mass Flow Table 3 768 - 1023 cts
;
; Table Value = Grams Air/sec
; Num = Arg + 256/Scalar
;--------------------------------------------------
LC6B9 FCB 83 ; Scalar
;
LC6BA: FCB 8 ; 9 Lines in Tbl.
;
;--------------------------------------
; gms/SeC BIN VDC #/HR
;--------------------------------------
LC6BB: FCB 147 ; 47.7 768 2.19 368
FCB 158 ; 51.2 800 2.29 395
FCB 170 ; 55.1 832 2.38 425
FCB 182 ; 59.0 864 2.47 455
FCB 195 ; 63.2 896 2.56 488
FCB 209 ; 67.8 928 2.65 523
FCB 223 ; 72.3 960 2.74 558
FCB 238 ; 77.2 992 2.83 596
FCB 253 ; 82.0 1024 2.93 633
;--------------------------------------------------
;---------------------------------------------------
; Mass Flow Table 4 1024 - 1279 cts
;
; Table Value = Grams Air/sec
; Num = Arg + 256/Scalar
;---------------------------------------------------
LC6C4 FCB 135 ; Scalar
;
LC6C5: FCB 8 ; 9 Lines in Tbl.
;
;----------------------------------------
; gms/SeC BIN VDC #/HR
;----------------------------------------
LC6C6: FCB 156 ; 82.3 1024 2.93 635
FCB 166 ; 87.5 1056 3.02 676
FCB 176 ; 92.8 1088 3.11 716
FCB 187 ; 98.6 1120 3.20 761
FCB 198 ; 104.4 1152 3.29 806
FCB 210 ; 110.7 1184 3.38 855
FCB 222 ; 117.1 1216 3.47 903
FCB 237 ; 125.0 1248 3.57 965
FCB 255 ; 134.5 1280 3.66 1038
;--------------------------------------------------
;---------------------------------------------------
; Mass Flow Table 5 1280 - 1535 cts
;
; Table Value = Grams Air/sec
; Num = Arg + 256/Scalar
;---------------------------------------------------
LC6CF FCB 207 ; Scalar
;
LC6D0: FCB 8 ; Lines in Tbl.
;----------------------------------------
; gms/SeC BIN VDC #/HR
;----------------------------------------
LC6D1: FCB 166 ; 134.2 1280 3.66 1036
FCB 176 ; 142.3 1312 3.75 1098
FCB 186 ; 150.4 1344 3.84 1161
FCB 196 ; 158.5 1376 3.93 1223
FCB 207 ; 167.4 1408 4.02 1292
FCB 219 ; 177.1 1440 4.11 1367
FCB 230 ; 186.0 1472 4.21 1435
FCB 242 ; 195.7 1504 4.30 1510
FCB 255 ; 206.2 1536 4.39 1591
;--------------------------------------------------
;---------------------------------------------------
; Mass Flow Table 6 1536 - 1791 cts
;
; Table Value = Grams Air/sec
; Num = Arg + 256/Scalar
;
;
;---------------------------------------------------
LC6DA FCB 255 ; Scalar
;
LC6DB: FCB 16 ; 17 Lines in Table
;
;----------------------------------------
; gms/SeC BIN VDC #/HR
;----------------------------------------
LC6DC: FCB 207 ; 206.2 1536 4.39 1591
FCB 213 ; 212.2 1552 4.43 1637
FCB 219 ; 218.1 1568 4.48 1684
FCB 226 ; 225.1 1584 4.53 1737
FCB 233 ; 232.1 1600 4.57 1791
FCB 240 ; 239.1 1616 4.62 1845
FCB 248 ; 247.0 1632 4.66 1906
FCB 255 ; 254.0 1648 4.71 1960
FCB 255 ; 254.0 1664 4.75 1960
FCB 255 ; 254.0 1680 4.80 1960
FCB 255 ; 254.0 1696 4.85 1960
FCB 255 ; 254.0 1712 4.89 1960
FCB 255 ; 254.0 1728 4.94 1960
FCB 255 ; 254.0 1744 4.98 1960
FCB 255 ; 254.0 1760 5.03 1960
FCB 255 ; 254.0 1776 5.07 1960
FCB 255 ; 254.0 1792 5.12 1960
;--------------------------------------------------
;--------------------------------------------------
; Mass Flow Filter & Limits
;
;
;--------------------------------------------------
LC6ED FCB 32 ; Mult for sliding filter
FDB 2048 ; 32 Hz, Min Out of MAF, (65536/hZ)
LC6F0 FDB 0768 ; 3 gms/Sec, Min Allowable Flow
;--------------------------------------------------
; Max Air Flow vs RPM
;
;
;
; TBL = Grams/Sec
;--------------------------------------------------
ORG $06F2 ; gms/SeC RPM
;------------------------------------------
LC6F2 FCB 23 ; 23 0
FCB 23 ; 23 400
FCB 30 ; 30 800
FCB 48 ; 48 1200
FCB 68 ; 68 1600
FCB 89 ; 89 2000
FCB 111 ; 111 2400
FCB 141 ; 141 2800
FCB 170 ; 170 3200
FCB 200 ; 200 3600
FCB 220 ; 220 4000
FCB 236 ; 236 4400
FCB 245 ; 245 4800
FCB 247 ; 247 5200
FCB 247 ; 247 5600
FCB 247 ; 247 6000
FCB 255 ; 255 6400
;----------

 

This is what worries me, but Tequilaboy also suggests that the mask isn't picking up/displaying the data within the EPROM correctly.

Both issues are problems!!

I used the mask from the Tunerpro website, for use with the 1987 ($32B) and Tunerpro - so should be correct?

There is another indicator that Tequilaboy is on the money and that's the thermo fan on/off numbers - they are nonsense.

They show -ve numbers for fan on/off????



Thanks for all the input

Tequilaboy...file on its way

 

mr_tequilaboy...hard to see the underscore since it appears to be underlined like a link...got file thanks.

During the burnoff...the MAF raw spikes to 147 gm/sec then settles at about 80-81 gm/sec. 80 gm/sec is around 2.9 volts or ~ 145 AD counts....This is much greater than the expected 95 counts or ~1.9 volts.

Simply put, the MAF voltage is too high during the burn off cycle, so it should set a code 36 under the circumstances.

 

Awesome, thanks..... that is a replacement MAF...could do the same test with the original, if you could look at the data for me please?

Do you have a mask for $32B that works with your adx file, then I can see for myself?