7747 ecm

[EagleMark]

That explains a lot. So you do have some data... it's a lot harder to do with scan tool, you'll like computer data when you get the cable.

Watch long term fuel trim should be 118 to 128 when goes into HyWay Lean Cruise. Actually it can be a wider range but fairly accurate there. Make sure parameters in the bin file are set and you know what they are and scan tool should show it go open loop. Want the MAP setting low enough to exit and resume closed loop when load is greater like pulling trailer or big hill.

So what software are you using to make the bin changes? If TunerPro there's some updated $42 ADX and XDF files. When data logging with the ADX file it's like scan tool on steroids. Are you still using the UV erase chips? What bin did you start with?

[ony]

i started with aksf bin, i have been using tunerpro to edit still using the old uv eraser. going to make a test run going to work this morning got about a 4 mile fairly flat strech of hy way. maybe i will get my cable by the weekend

[ony]

tried it out this morning map was to high to work right, this silly truck will run 85 mph in third gear and still going,shifted to 4th gear afraid of throughing the rods out, wot,lost 5 mph ,on into 5 th gear went down to 70 mph, milk it it will hold 72 in 5th gear on flat ground run out of high way had to slow down. at 70 mph it going 1890 rpm in 5th gear. any way i should get my data cable this weakend and have sumore fun.

[ony]

i got my cable today , downloading drivers now, wont be able to data log till tommorow afternoon, kinduf exited as to what i might learn. i have got a ob2 auto enginenuity scanner program i use at work,it has a lot of stuff in it an if i understuid all of it i could fix a lot more than i do. we work on ever thing but chain saws an weed eaters.sure is a lot easyer with an electric starter motor. if my data logger works i will have some fun tommorow afternoon. to be countinued.

[EagleMark]

Even if the Auto Enginuity OBDII software works for the OBDI? You'd be better off from a tuner perspective by using TunerPo RT
http://www.gearhead-efi.com/Fuel-Inj...is-a-must-read
and the XDF ADX files in this thread.
http://www.gearhead-efi.com/Fuel-Inj...Information-42

TunerPro has a Data Logger.

[pmkls1]

Even if the Auto Enginuity OBDII software works for the OBDI? You'd be better off from a tuner perspective by using TunerPo RT
http://www.gearhead-efi.com/Fuel-Inj...is-a-must-read
and the XDF ADX files in this thread.
http://www.gearhead-efi.com/Fuel-Inj...Information-42

TunerPro has a Data Logger.

Agreed ! For me it just makes things simpler and easier to be able to log and edit with the same program. This is ESPECIALLY handy if you make the proper changes to enable the map trace function as it takes the guesswork out of a LOT of the tuning process.

[EagleMark]

The map (data trace) is all set up in those ADX,XDF files. All you have to do while connected to vehicle is click the Data Trace button.

For adjusted fuel VE there is a spreadsheet built.

Writeup on how to combine the 2 VE tables and smooth them.

Pretty easy way to start and learn.