Is it possible to get "Calculated AirFlow" into the data stream to data log with a 7427 PCM? Not concerned with it being actual, rather to see what the PCM is seeing.
Is it possible to get "Calculated AirFlow" into the data stream to data log with a 7427 PCM? Not concerned with it being actual, rather to see what the PCM is seeing.
89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
05 Outback XT 2.5L turbo gas auto
That went way over my head lol. What, where and how am I looking for the RAM location?
89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
05 Outback XT 2.5L turbo gas auto
From the $0D disassembly the Airflow in gms/sec is at ram location L0255.
If you are using $0E, it is at L0231. You can replace the prom ID in the datastream with this ram location and it will show the calculated airflow in the via the prom ID.
See this thread for instructions: http://www.gearhead-efi.com/Fuel-Inj...the-DataStream
Hope this helps,
Brian
So, change the prom ID in the XDF from 0x4000 to 0x0231? Then relabel "Prom ID" in the ADX to "Calculated AirFlow"?
89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
05 Outback XT 2.5L turbo gas auto
In your bin which I assume you are using $0E, there is a section where the datastream for mode 1 is set up. Prom ID is two bytes. Change the address $4000 to 00 in your bin. Change $527F to 02 and $5280 to 31 in the bin. The Prom ID in the datastream should then show the calculated airflow in HEX . Do this on a copy of your bin just in case I misread the hack.
Here are the addresses from the $0E dis-assembly (hack or hac).
The disassembly for $0E is in the $0E thread for the 6395 pcmCode:;--------------------------------------------- ; DEVICE CODE $F4, 8192 RECEIVE MSG ; MODE 1, SUB MODE 1, ENGINE DIAGNOSTICS ; TYPE $0E ;--------------------------------------------- L5274 FDB $0000 ; NEXT MESAGE ENTRY ADDRESS ; L5276 FDB $F4 ; MESSAGE ID L5277 FDB $80 ; USE ROM BUFFER L5278 FDB 64 ; NUMBER OF OUTPUT DATA BYTES ; L5279 FDB $036C ; ADDRESS OF OUTPUT MSG BUFFER L527B FDB $036C ; ADDRESS OF INPUT MSG BUFFER ; ;--------------------------------- L527D FDB $4000 ; 1, EPROM ID WORD MSB L527F FDB $4001 ; 2, EPROM ID WORD LSB ;---------------------------------
Hope this helps
Brian
Sorry so stupid, this stuff hurts my brain. In the BJDR $0E Hack I see this,
At L4000 I have 7415
At L527D I have $4000
Dont see L5280?
89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
05 Outback XT 2.5L turbo gas auto
Look in the bin you are using. There may be a few address differences between BCC codes. I used the last hack in the zip file (BJKZ_HAC.src) Basically the datastream code in the bin reads the values at address $4000 and $4001 to display the Prom ID. You change the code to display the value at 0x0231 which is the ram location for the calculated airflow. Post your bin and what the original BCC was. I will take a look at it later this eve.
Brian
Bookmarks