About the QuarterHorse
You can change ANY parameter while the vehicle is running without disturbing operation. You can log any parameter in RAM from the EEC-IV and V at sample rates well over 2,000 frames per second through the same mini USB cable (no OBD cable needed). HOWEVER, not all parameters are stored in RAM that the QH can access in factory ROMs – patch code is required for each strategy to allow all parameters to be logged. This patch code is integrated into the datalogging definitions in most software (EEC Editor, Binary Editor). Simultaneous ultra-high-speed rigorous datalogging capabilities are closely-coupled with the realtime-emulation / tuning-on-the-fly for the ultimate tuning experience.
Although QH provides unmatched features, it has limits. It is “just” an emulator and datalogger. You are still working with factory ECMs. Any limitations of the factory ECM that would be present with a chip will be present with the QH. An example of this is that an A9L Fox body MAF computer cannot convert over to use a MAP sensor or run Coil-On-Plug simply by adding a QH. It’s cool, but not magic.
This device continues the tradition and heritage of our highly-integrated, low-cost, high-quality tuning tools from GM and Honda into the Ford arena. As of 2/11/10, it is supported by Paul Booth’s EEC Editor, Clint Garrity’s Binary Editor, and some support is present in Mark Mansur’s TunerPro version 5.
The QuarterHorse does have limited support (4x) for remote switching via rotary knob (available separately, search this site for ‘QH Switch’) as well as software-based program selection from PC (8x 1-bank, 4x 2-bank, 2x 4-bank). Firmware revision 1.6 adds the ability to ‘harvest’ stock binaries from a computer that is externally powered. (i.e. you cannot do reads on the bench without a 12V power supply)
The QH package comes with the QH device itself, premium USB 2.0 mini-to-regular USB bulkhead cable, cable mounting bracket and bolt, standard USB 2.0 cable, and 2x snap-on ferrite beads. Software available separately (check our Software and Drivers section). It is critical that the vehicle is fully off before installing or removing the QH on the J3 port. Failure to power-off the ECM correctly can result in frying our hardware, your ECM or both!!! If you have any doubts at all, remove the keys from the ignition 100% or disconnect the battery. WARNING WARNING WARNING!
- The new version of Binary Editor 2010 requires QH firmware 1.6 or higher.Most firmware upgrades are bugfixes of one variety or another. If you aren’t having trouble, chances are the bugs do not affect you.
- Most bugs affected the QH when operating in modes 3 and 4 (EECV)
- The latest firmware revision as of 2/11/10 (version 1.6) allows you to read the stock program from an ECM using the QuarterHorse.
Program Switching with QuarterHorse
Now, hold the modified 4 (now 3) pin connector in place as shown, re-heating the solder so that the two pieces can be bonded together in the correct position.
Here is what the completed switch / QH / knob assembly should look like:
This is a pretty simple installation. It basically overrides the BS0/BS3 lines (if you’re familiar with this terminology) at the EEC connector. Therefore, to repeat, this is NOT to be used on EEC-V applications.
NOTE: The QuarterHorse must be configured to use MODE 1 or the switch will NOT WORK. As of the time of writing (Apr 2011) Binary Editor is the only software that supports Mode switching which means it is also the ONLY software that will currently work with the switcher module.