Third Generation F-Body Message Boards

 
Page 1 of 4
1
2
3
4
Search: Posts Made By: aDFIguy
Showing results 1 to 50 of 161
Search took 0.37 seconds.
Forum: DFI and ECM
10-13-2010, 04:15 PM
Replies: 47
Views: 15,972
Posted By aDFIguy

Re: Make Accel dfi cable?

Have you guys that are having noise issues on the USB cables tried different spark plug wires yet? I believe low resistance plug wires (or any type of plug wires that have started breaking down) can...
Forum: DFI and ECM
07-27-2008, 07:19 PM
Replies: 9
Views: 1,198
Posted By aDFIguy

Re: Accel DFI PLEASE HELP!

That looks better. You still have some work to do, the log shows some pretty lean spots when you start to roll into it. You should do some more logging at steady state to see where your A:F ratios...
Forum: DFI and ECM
07-26-2008, 06:52 PM
Replies: 9
Views: 1,198
Posted By aDFIguy

Re: Accel DFI PLEASE HELP!

Your VE table is a mess! Try this: from the Configuration menu, select "Quick ECM Setup", then "2 Bar Presets". Select the Base VE table and send it to your ECM. Then try running through the...
Forum: DFI and ECM
07-26-2008, 01:06 PM
Replies: 9
Views: 1,198
Posted By aDFIguy

Re: Accel DFI PLEASE HELP!

I think some of the newer distributors had 2 spots where the cam sync (blue) LED came on. However, there should only be one spot in the rotation where the blue light goes off, then the red light...
Forum: DFI and ECM
03-12-2008, 07:33 PM
Replies: 3
Views: 660
Posted By aDFIguy

Re: Thinking about going with Gen 7

The Gen 7 requires that it's knock input be tied to a knock module. If you have a module that conditions the signal from your knock sensor, it will work fine. You can't connect the knock sensor...
Forum: DFI and ECM
01-17-2008, 06:03 PM
Replies: 1
Views: 613
Posted By aDFIguy

Re: Accel Gen VII Advise needed!

I'd go with it. You shouldn't have to do much to it to make it work on your tuned port. Everything is software selectable on the Gen 7.

You can always buy it for $300 and send it in to DFI to...
Forum: DFI and ECM
09-16-2007, 10:23 AM
Replies: 2
Views: 1,456
Posted By aDFIguy

Re: accel dfi data logger/wideband o2

I think you're out of luck with Vista.

The last I knew, the USB drivers for the cable weren't supported for Vista yet. If you can find Vista drivers for the Prolific PL2303 USB bridge chip,...
Forum: DFI and ECM
06-12-2007, 06:17 AM
Replies: 5
Views: 575
Posted By aDFIguy

Re: Question and help with Injector Timing DFI Gen7 LT4 corvette

Your true VE isn't changing, but the numbers in your table may drop slightly because the engine is getting more of the fuel that you are injecting. By timing the injection event properly, more fuel...
Forum: DFI and ECM
06-11-2007, 07:21 AM
Replies: 5
Views: 575
Posted By aDFIguy

Re: Question and help with Injector Timing DFI Gen7 LT4 corvette

It's been my experience that you have to play with the target injector timing on the dyno to get it just right. You might not see much of a power increase, but you should see the fuel requirements...
Forum: DFI and ECM
05-04-2007, 06:53 AM
Replies: 5
Views: 654
Posted By aDFIguy

Re: What Aftermarket ECM's run your car using a Wide Band O2?

Nearly every aftermarket system available can use a wideband O2 sensor these days. The ones that can't perform that (basic) function are probably not worth using anyway.
Forum: DFI and ECM
04-13-2007, 07:29 AM
Replies: 10
Views: 1,099
Posted By aDFIguy

Re: speedometer help,with accel DFI's wideband data loger input

The data logger can use either a 5 or 12 volt square wave input. There's a dipswitch on the back of the PCB to select between [square wave] and [VR-type] input, I think it's switch #5. Make sure...
Forum: DFI and ECM
04-10-2007, 06:22 AM
Replies: 22
Views: 1,123
Posted By aDFIguy

Re: accel help?

The 77025 kit is for the GN v6 engine, and comes with a 2 Bar MAP sensor. You'll have to check around to find a distributor for that kit, it's pre-wired to work with the GN ignition module. Once...
Forum: DFI and ECM
04-09-2007, 06:17 AM
Replies: 22
Views: 1,123
Posted By aDFIguy

Re: accel help?

Sounds like a pretty good plan. You'll be a little better off with the distributor vs. coil packs if you plan on using the rev limiters built into the DFI controller. Due to the way it works, the...
Forum: DFI and ECM
03-30-2007, 06:19 AM
Replies: 4
Views: 4,368
Posted By aDFIguy

Re: Accel DFI gen6, anyone using windows XP?

The odds are not good with Win XP.

You really need to be able to reboot the PC into a DOS mode like back in Windoze 95/98. It may be possible. I think I've heard of one or 2 people who got it...
Forum: DFI and ECM
03-15-2007, 06:29 AM
Replies: 1
Views: 520
Posted By aDFIguy

It depends on the type of Ignition. The Gen 7...

It depends on the type of Ignition. The Gen 7 can read anything that produces a trigger signal having one pulse per cylinder event. Some DIS systems (like the Buick GN or Ford EDIS) use an ignition...
Forum: DFI and ECM
03-08-2007, 07:53 AM
Replies: 45
Views: 4,346
Posted By aDFIguy

I think it can be looked at the from the other...

I think it can be looked at the from the other direction as well...

Moates. Rbob, and others have done some very fine work to bring real-time tuning to the stock processors. Aftermarkets have...
Forum: DFI and ECM
03-02-2007, 06:16 AM
Replies: 22
Views: 1,123
Posted By aDFIguy

Both should work fine with XP. You may have to...

Both should work fine with XP. You may have to get a USB to Serial adapter if you don't have a 9-pin serial port on your computer.
Forum: DFI and ECM
03-01-2007, 07:41 AM
Replies: 22
Views: 1,123
Posted By aDFIguy

Get the Gen 7, don't even consider wasting your...

Get the Gen 7, don't even consider wasting your time on an older Gen 6 model.

The Holley system is somewhere between the DFI Gen 7 and Gen 6 boxes. Kind of an updated Gen 6 with a few modern...
Forum: DFI and ECM
02-28-2007, 07:07 AM
Replies: 22
Views: 1,123
Posted By aDFIguy

Any DFI system is capable of running a V6. The...

Any DFI system is capable of running a V6. The whole system is software configurable so that one ECM can be programmed to run a wide range of 4-8 cylinder engines. It's mainly the supplied...
Forum: DFI and ECM
02-28-2007, 06:41 AM
Replies: 4
Views: 992
Posted By aDFIguy

Mainly stability @ WOT. You don't want the...

Mainly stability @ WOT. You don't want the transient fueling strategy to randomly cause injections when the engine is wide open and MAP may be bouncing around due to the physics of the air intake...
Forum: DFI and ECM
02-27-2007, 07:02 AM
Replies: 22
Views: 1,123
Posted By aDFIguy

You need to figure in the vacuum range (where...

You need to figure in the vacuum range (where your engine operates at less than wide open throttle). 1 Bar vacuum + 2 Bars (~29 pounds) boost = 3 Bars total measurement range of the 3-BAR MAP...
Forum: DFI and ECM
02-12-2007, 06:15 AM
Replies: 2
Views: 1,130
Posted By aDFIguy

Download it from here....

Download it from here. (http://go.mrgasket.com/ftp/calmap/CalMap_For_Generation_6_Systems/CalMap60%20Floppy%20Image.zip)
Forum: DFI and ECM
12-23-2006, 01:58 PM
Replies: 5
Views: 1,571
Posted By aDFIguy

Hmm. That's pretty interesting about the usb...

Hmm. That's pretty interesting about the usb adapter. Maybe try changing the resolution if you are getting in through a dos window. Otherwise, I'm not sure how to change the resolution if you are...
Forum: DFI and ECM
12-21-2006, 07:10 AM
Replies: 5
Views: 1,571
Posted By aDFIguy

Wow. That pic is pretty crazy. What...

Wow. That pic is pretty crazy.

What computer/operating system combo are you running to get that to happen?

The fact that you mentioned a USB port scares me a little. Unless you can get DOS...
Forum: DFI and ECM
12-15-2006, 07:07 AM
Replies: 3
Views: 699
Posted By aDFIguy

If you've done ms tuning, you'll be ok to jump...

If you've done ms tuning, you'll be ok to jump into the older DFI stuff. There's some similarities. Be advised that the older Gen 6 tuning software REQUIRES a DOS computer environment. It works...
Forum: DFI and ECM
12-13-2006, 03:18 PM
Replies: 1
Views: 1,223
Posted By aDFIguy

It cranks at 0 degrees until the engine RPM...

It cranks at 0 degrees until the engine RPM exceeds the value in your Startup Term RPM table [Ignition Menu->Starting->Startup Term RPM]. Once you cross that RPM threshold, the values from your Base...
Forum: DFI and ECM
11-22-2006, 03:12 PM
Replies: 7
Views: 2,952
Posted By aDFIguy

Injector Pulse Width PW ms => Use this to monitor...

Injector Pulse Width PW ms => Use this to monitor your actual fueling via Injector Pulse Width in milliseconds.

HEGO A:F A:F => Monitors estimated A/F when using HEGO sensor in a special HEGO...
Forum: DFI and ECM
11-21-2006, 07:09 AM
Replies: 7
Views: 2,952
Posted By aDFIguy

Use CalMap to record Engine Speed, HEGO voltage,...

Use CalMap to record Engine Speed, HEGO voltage, O2 Feedback %, ECT, and Injector Pulse Width values during a warm start and for a couple of minutes afterward. Do this with each sensor and you'll be...
Forum: DFI and ECM
11-20-2006, 06:59 AM
Replies: 7
Views: 2,952
Posted By aDFIguy

Does your main screen in CalMap read actual A/F...

Does your main screen in CalMap read actual A/F ratio, or HEGO voltage?

P/N 77761 is for a HEGO sensor -- 4 wires connected to the sensor. Make sure that you are not trying to use that sensor...
Forum: DFI and ECM
11-13-2006, 06:36 AM
Replies: 5
Views: 1,571
Posted By aDFIguy

The old 6.0 stuff needs to be run in a pure DOS...

The old 6.0 stuff needs to be run in a pure DOS environment. Nothing later than windoze 95 will really allow calmap 6.32 to work correctly. If you can find a copy of MS-DOS 6.22, and you can...
Forum: DFI and ECM
09-01-2006, 07:31 AM
Replies: 4
Views: 992
Posted By aDFIguy

Acceleration Enrichment -- Add fuel versus change...

Acceleration Enrichment -- Add fuel versus change in TPS position and/or change in MAP. Raise the numbers to add more fuel, lower them to lean it out. The farther right you go in each graph...
Forum: DFI and ECM
08-11-2006, 06:39 AM
Replies: 1
Views: 751
Posted By aDFIguy

Hook up your Laptop and see if you get RPM...

Hook up your Laptop and see if you get RPM displayed on the screen while you are cranking.

If you don't see the engine speed changing while you are cranking, it's a problem with the crank signal...
Forum: DFI and ECM
08-04-2006, 06:20 AM
Replies: 2
Views: 613
Posted By aDFIguy

Both outputs are meant to supply a ground to...

Both outputs are meant to supply a ground to activate a relay.

Use one relay to turn on the coolant fan, and another relay to interrupt power to your AC compressor.
Forum: DFI and ECM
07-28-2006, 06:46 AM
Replies: 5
Views: 2,633
Posted By aDFIguy

Maybe try looking into some third-party...

Maybe try looking into some third-party communications libraries that would allow you to set the baud rate numerically.

Depending on what platform/language you are using, here are a few that may...
Forum: DFI and ECM
06-18-2006, 08:23 AM
Replies: 16
Views: 902
Posted By aDFIguy

Correct. You can adjust the VE numbers until...

Correct. You can adjust the VE numbers until closed loop correction as as low as you can get it. However, with a narrowband sensor, you can only really accurately target A:F ratios right around...
Forum: DFI and ECM
06-17-2006, 09:08 AM
Replies: 16
Views: 902
Posted By aDFIguy

If you use that file, tweak the parameters to...

If you use that file, tweak the parameters to match what you have, and create new VE table using the utility in Fuel Menu -> Utilities -> VE Predictor, you should be in the ballpark.

The VE...
Forum: DFI and ECM
06-16-2006, 07:44 PM
Replies: 16
Views: 902
Posted By aDFIguy

Launch CalMap, Click the OFFLINE FROM FILE...

Launch CalMap, Click the OFFLINE FROM FILE button. When asked for a calibration to edit, select "sample_v0x0.ecm", where x is a number depending on the version CalMap that you are using. Once you...
Forum: DFI and ECM
06-16-2006, 06:48 AM
Replies: 16
Views: 902
Posted By aDFIguy

Glad to see you got it (somewhat) figured out......

Glad to see you got it (somewhat) figured out... here are some quick answers to your questions:

Type 1 or Type 2 refers to model of DFI wideband. If you buy a new one, it'll be a Type 2. Newer...
Forum: DFI and ECM
06-15-2006, 06:30 AM
Replies: 16
Views: 902
Posted By aDFIguy

Make sure the Exhaust Feedback Sensor Switch on...

Make sure the Exhaust Feedback Sensor Switch on the Controls Configuration Screen is set to HEGO (Standard). The display on the main screen should be reading HEGO Voltage between 0 and 1, not O2...
Forum: DFI and ECM
06-12-2006, 06:48 AM
Replies: 3
Views: 1,133
Posted By aDFIguy

The less you know about tuning, the more a...

The less you know about tuning, the more a wideband O2 sensor will help you.

DFI has a new wideband out that can use the lower cost Bosch sensor (same as the LM1). As a bonus, it also functions...
Forum: DFI and ECM
05-05-2006, 06:17 AM
Replies: 1
Views: 508
Posted By aDFIguy

well... does it go away if you put the timing...

well... does it go away if you put the timing back where it was? What happens if you add a little fuel in the VE or Target A:F table in the same area that you changed the timing, does it get better...
Forum: DFI and ECM
04-13-2006, 06:30 AM
Replies: 3
Views: 784
Posted By aDFIguy

When looking at the view screen, do you see RPM...

When looking at the view screen, do you see RPM when you are cranking? The computer won't even try to fire the injectors unless it is reading a (good) crank input signal -- indicated by an RPM...
Forum: DFI and ECM
03-06-2006, 06:09 AM
Replies: 2
Views: 3,090
Posted By aDFIguy

Crank position output from MSD (Purple & Green...

Crank position output from MSD (Purple & Green ???) wires go to CRK+ and CRK - on the DFI, use the Blue EST output from the Gen 7 to trigger your ignition box. Press CTRL-F1 from your DFI software...
Forum: DFI and ECM
02-28-2006, 06:32 AM
Replies: 7
Views: 743
Posted By aDFIguy

If you add a resistor in series with a low...

If you add a resistor in series with a low impedance injector, while it will seem to work, all you are really doing is turning the injector into a high impedance injector. However, you have the...
Forum: DFI and ECM
01-24-2006, 06:32 AM
Replies: 20
Views: 4,357
Posted By aDFIguy

Nothing else matters until your fueling is...

Nothing else matters until your fueling is modeled correctly. Everything depends on the VE table being accurate.

When the engine is warm, put some safe values into your Target Air:Fuel table and...
Forum: DFI and ECM
01-09-2006, 06:37 AM
Replies: 4
Views: 585
Posted By aDFIguy

A dyno obviously makes tuning quicker and easier,...

A dyno obviously makes tuning quicker and easier, especially on the timing side of things. You can't beat having raw numbers to compare run by run to see exactly what the changes you've made have...
Forum: DFI and ECM
01-06-2006, 06:28 AM
Replies: 4
Views: 585
Posted By aDFIguy

Open up your Base VE table, press the Overlay...

Open up your Base VE table, press the Overlay button, and select that same log file that you posted. Then step through the file point-by-point and adjust your VE values by the amount of your O2...
Forum: DFI and ECM
12-09-2005, 07:06 AM
Replies: 2
Views: 635
Posted By aDFIguy

It's possible. You have to have version 4.0 or...

It's possible. You have to have version 4.0 or higher of CalMap which allows you to put a generic linear 0-5 table into the ECM. Then you have to program your innovate (or whatever sensor you have)...
Forum: DFI and ECM
12-06-2005, 06:43 AM
Replies: 2
Views: 1,177
Posted By aDFIguy

The 5 volt reference is a precision supply used...

The 5 volt reference is a precision supply used by your MAP, TPS and other sensors. Sometimes a bad sensor can excessively load the supply and cause to go out of range. The ECM sees this, and sets...
Forum: DFI and ECM
11-08-2005, 06:50 AM
Replies: 4
Views: 650
Posted By aDFIguy

That sounds way wrong. The pulse width number...

That sounds way wrong. The pulse width number shown in the software is the maximum individual pulse width for all cylinders. Check your individual cylinder fueling coefficients to see if one...
Showing results 1 to 50 of 161
 
Page 1 of 4
1
2
3
4


 
Forum Jump


All times are GMT -5. The time now is 05:03 PM.