I have used the hiway747 patch for my bin file, but i dont know how to add the new items to TunerPro 7747 definition file.

OK i patched my bin file, and i got my ECU file to read the patch (i think).the numbers range from 154-161 (perhaps millivolts?) I think the patch makes the ECU go into open loop looking up value's from 0B2B address which is 154-161. Although i do not have an Equation for the conversion. Like i said, my bin is patched, but i dont know where its set at, but i guess ill burn it to chip and test drive the car. I dunno

EH screw it. Im sure it would be easier to learnd sorce code and just create a bin from scratch

Ok, the 154-161 are 15.4-16.1:1 afr. in the equation, i divided X by 10. Haven't driven the vehicle yet, but it starts and run fine. I have my Hiway SA set to 40 MPH and 1 second. SA set to 3 degrees. This patch stuff is like BAD @$$! lol. I created my own ECU file. Is there anyone else having this much fun with this stuff?

You are addicted. . . (this is a good thing).

You may want to set the time before entering Hiway mode a little higher. Maybe 10-15 seconds. The reason is that the engine should have a chance to first stabilize at a bit.

RBob.

Ok i will try it.