Has anyone used this program on a 746 computer? I have a 91, 305 TBI that I am playing with and am looking for a good data stream file. The one I found seems to give wrong coolent temp numbers and some other problems.
TGO Supporter
Where did you find the one you're using? Why not fix it for everyone's benefit? 
Find the template for your vehicle here:
ftp://diy-efi.org/pub/gmecm/ALDLstuff.zip
And use the info in the template to fix the ADS file.
Find the template for your vehicle here:
ftp://diy-efi.org/pub/gmecm/ALDLstuff.zip
And use the info in the template to fix the ADS file.
Mangus,
Today was my first time trying out the TunerPro RT software. I got the data stream file from Moates site. I didn't know that these templates were around. I just took the original file and added a table like the template uses instead of the calculation that was used in the original. It fixed the problem with the coolant temp. I like how I can play my log back with the new data stream file and see the differences. I was afraid the software recorded calculated values instead of raw one.
Today was my first time trying out the TunerPro RT software. I got the data stream file from Moates site. I didn't know that these templates were around. I just took the original file and added a table like the template uses instead of the calculation that was used in the original. It fixed the problem with the coolant temp. I like how I can play my log back with the new data stream file and see the differences. I was afraid the software recorded calculated values instead of raw one.
Senior Member
Remember that the cts and iat aren't converted into an easy to convert value for the ALDL stream. It is raw a/d and inv a/d meaning you have to use a lookup table for it to be accurate for the whole temp range.
Does the ads file you're using use a lookup table or a formula for cts/iat?
Does the ads file you're using use a lookup table or a formula for cts/iat?
That was exactly the problem. I think someone looked at one point, came up with a formula for it and went with it. Since it is an inverse A/D funciton I used a table.
TGO Supporter
Cool! Once you're done flushing out the issues with the file, can you email it to me? I'll put it up on Craig's site (where you got the original) to alleviate such issues for others.
the MAP is also in volts dc, so I just put in the correct gain and offset that we use in Ccom for the GM 1 bar map sensor. This way is makes it easier to correlate it to the tuning parameters. After I get this all tested I can post the data stream file somewhere for anyone that is trying to tune one of these computers with the TunerPro RT software.
Senior Member
Quote:
Originally posted by bluzman2004
the MAP is also in volts dc, so I just put in the correct gain and offset that we use in Ccom for the GM 1 bar map sensor. This way is makes it easier to correlate it to the tuning parameters. After I get this all tested I can post the data stream file somewhere for anyone that is trying to tune one of these computers with the TunerPro RT software.
Be careful. Use the hack and the ram, the hard work is already done for you;Originally posted by bluzman2004
the MAP is also in volts dc, so I just put in the correct gain and offset that we use in Ccom for the GM 1 bar map sensor. This way is makes it easier to correlate it to the tuning parameters. After I get this all tested I can post the data stream file somewhere for anyone that is trying to tune one of these computers with the TunerPro RT software.
From the hack; ALDL datastream
Code:
$0023 is RAM (as is most of the ALDL datastream) so going into the commented ram it's said that this location is;LD41A: FDB $0023 ; 4. coolant
Code:
Inverse it is L0023 EQU $23 " coolant, 1k pu, inverse, adc cnts"
. The lookup table is in the hack but I'll post it here. Code:
From the same sources the IAT is A/D not inverse.;*================================================== ;* ;* Table 1 --- Coolant Temperature, 1k pu ;* ;* ;* A/D degrees A/D ;* counts C Inv ;* ------- ------- --- ;* 255 -40 0 ;* 251 -30 4 ;* 250 -25 5 ;* 247 -20 8 ;* 245 -15 10 ;* 241 -10 14 ;* 237 - 5 18 ;* 231 0 24 ;* 225 5 30 ;* 218 10 37 ;* 209 15 46 ;* 199 20 56 ;* 189 25 66 ;* 177 30 78 ;* 165 35 90 ;* 152 40 103 ;* 139 45 116 ;* 126 50 129 ;* 114 55 141 ;* 102 60 153 ;* 92 65 163 ;* 81 70 174 ;* 72 75 183 ;* 64 80 191 ;* 56 85 199 ;* 50 90 205 ;* 44 95 211 ;* 39 100 216 ;* 34 105 221 ;* 30 110 225 ;* 26 115 229 ;* 23 120 232 ;* 21 125 234 ;* 18 130 237 ;* 16 135 239 ;* 14 140 241 ;* 13 145 242 ;* 12 150 243 ;* 0 200 255 ;* ;*==================================================
MAP is $002A which is raw voltage. From some source, I forget where, I've got the following as a lookup table.
Code:
Notice it isn't a linear formula. The other more advanced option would be to change the ALDL datastream to something like L0025 EQU $25 " s/d map, KPa = (N * 0.3125) + 20". This is limited to ~99.6kpa but it's used for the VE and Main SA lookup tables making it slightly more accurate (as if if would matter with the slow rate 1 BAR Voltage Kpa 4.90 100 4.40 90 3.80 80 3.30 70 2.70 60 2.20 50 1.70 40 1.10 30 0.60 20 0.30 10
).