DFI and ECMDiscuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.
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Hi guys,
I just won an auction for an accel dfi gen 6 module. It didn't come with cal map or a cable so I was wondering if anyone had them for sale or if I could bum a copy of the cal map and make myself a cable? Does anyone have any information on it? The module I have is #74024. It came with a wiring harness so that's not a problem and I guess I'll also need the base maps (?). If anyone can give me any info, I'd be greatly in debt. Thanks.
-Bruce
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__________________ Bruce Chang
ICQ #2992488
89 Firebird Trans Am
305 TPI, ATI Procharger Supercharger, SLP camshaft, Ported SLP Siamesed Runners, Siamesed Intake and plenum, Edelbrock TES, Hotchkis LCA's and Panhard Rod, GMPP 1.6 Roller rockers, Transgo Shift Kit, Spohn Subframe connectors, Flowmaster Muffler, Accel Super Coil, Crane Hi-6 Ignition, Energy Suspension motor, tranny and torque arm bushings
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Go to www.fasttrackperformance.com and email Mac. His number is there also. He makes a DFI 6.0 cable much cheaper than you would getting the Accel cable. Calmap 6.32 can be downloaded from www.mrgasket.com/dfimain.html . Email me and let me know what your engine configuration is. I might have something close to it that you can run off of. You can also go into the GLOBAL window of Calmap and use the UTILITIES function to create a fuel map for your application. Using the GLOBAL/UTILITIES function does come out on the rich side, so when Calmap asks for the parameters of your engine, you may want to reduce HP and torque output down about 15% or using rear wheel HP and torque numbers instead of flywheel numbers. Keep in mind that using someone else's Calmap maps or having the GLOBAL/UTILITIES function create you a map IS ONLY A STARTING POINT. You will have to tune the map to your particular engine configuration. Also keep in mind that you must use DOS for the Calmap software. Using Calmap in a WINDOWS enviroment can currupt the software and maps you modify. Hope this helps.
__________________ N/A 406, TPIS Miniram, 58mm TB, 30lbs injectors, Custom Ground Elgin Cam, Ported TFS heads, SLP 1-3/4", & DFI Gen 6. Still waiting for it to die.
11.70@117mph
So I'm still trying to figure out the pin outs from the DFI unit to the serial cable. I have everything I need, I'm just not getting the right pins connected to the right pins. Does anyone have a minute to ohm out the cable and tell me which ones connect to which? I'd be eternally grateful.
The cable that connects your DFI to your laptop is not just a simple serial cable. In the middle of the cable is a sealed module. Sorry to say that I've never opened that module since it's completely sealed and don't feel like spending the extra money if I ruin it by opening it and playing around inside the module. Mac from fasttrackperformance.com is the cheapest place I know to get that cable. He usually sells them almost $100 less than paying for the Accel cable. Hope this helps.
__________________ N/A 406, TPIS Miniram, 58mm TB, 30lbs injectors, Custom Ground Elgin Cam, Ported TFS heads, SLP 1-3/4", & DFI Gen 6. Still waiting for it to die.
11.70@117mph
Have you tried giving Accel/DFI a call? You can try giving www.fasttrackperformance.com (I believe they are not called Horsepower Connection) a call. They make adapter harnesses, etc for the Gen 7. You can try giving www.force-efi.com a call as well.
i have got a dfi cable with pro key built into it also have dfi wide band o2 with data logger these are new for a gen 7 this means you can log without laptop and than hook-up lap and veiw data after run the pro key will give you total control over everthing plug and play (will not work with windows vista) will only sell together.
I know this is an old thread, however...I got a Accel Gen 6 on trade today, but I didn't get to keep the cable/adaptor. So I carefully took it apart. There is 1 16pin chip, and 5 capacitors. The chip has had its markings scratched off. However, it appears to be a MAX232 circuit.
The converter box I have, has a 9 pin serial on one end, and flat 4 pin on the other. This flat 4 pin is what connects to the Accel DFI harness.
A BLUE
B GREEN
C RED
D BLACK
Where this plug goes to the Accel harness, the mating 4 pin flat has 1 wire with different color. It is this.
A ORANGE
B GREEN
C RED
D BLACK
Pin A goes to Pin 11 of the CHIP inside the adapter.
Pin B goes to Pin 12 of the CHIP inside the adapter.
Pin C is a 5 volt source , coming from the ACCEL harness.
Pin D is a GROUND source, coming from the ACCEL harness.
Serial Port side of it.
9 pin serial, Pin 2, Rx goes to Pin 14 of the CHIP inside adapter
9 pin serial, Pin 3, Tx goes to Pin 13 of the CHIP inside adapter.
9 pin serial, Pin 5, GROUND
follow the basic circuit from the link above to build the adapter.
!!!!HOWEVER!!!! THERE IS ONE CAPACITOR THAT IS DIFFERENT THEN THE CIRCUIT SHOWN. Looking at the basic circuit, C3 + is shown connected to pin 2 of MAX232 and - side to 5v+.
On the adapter I have, C3 + is connected to pin 2 of MAX232, but the other side of the cap goes to GROUND instead.
I have not built a new one and verified yet, however i've looked over this 10 times now, thats how it is wired....
I know this is old post, however, I did finally get around to building this interface. I ended up using a MAX233 chip, which is similar to the MAX232, but has all the supporting capacitors built into the chip. So, single chip, no other parts to build this cable. This does work, confirmed it tonight on a accell gen 6. calmap software connected and allowed me to modify the ecm. The MAX chip is powered by the 5v coming from the accell harness on pin C, RED. Ground is on Pin D, BLACK.
I just wanted to get this info out since I was unable to find it anywhere else.
