The obd2 workaround (basically clearing the ECU everytime) is a performance modification. If you are familiar as to how On Board Diagnostics 2 works, it has a set efficiency that it has to operate at. It monitors your engines sensory inputs and performs outputs to keep things closest to the "optimum" value programmed by the factory. In the beginning of a "Drive Cycle" which is how it learns things like ambient temperature, atmopheric pressure, air intake temperature, Manifold absolute pressure (air pressure in intake manifold also translate free folwing air mass into the chamber). When the computer doesn't have a value of these factors, as not to cause cylinder knock or misfire, it will run rich'er to make sure that there is no harm done to the engine. If you were doing modifications to any OBD2 (96- present) vehicle, the OBD2 workaround will allow your performance modifications to work as if you had added them to a Pre-OBD2 vehicle (1992-1995) OBD1, because OBD1 does not learn and adjust, it just monitors sensory inputs and makes it easier for Diagnostic purposes by setting a standard DTC (Diagnostic trouble code).
The OBD2 Workaround is basically the other option to getting a piggy back harness to down convert to OBD1 from OBD2. The reason i wish not to do that instead, is emissions testing. When it comes time for the emissions testing, i would have to take out the OBD1 computer and install the original OBD2 computer. Then go through the 800+ miles Drive cycles to set the readiness monitors then put the OBD1 computer back in when thats done!
With the Workaround, i just have to flip a switch and the ECU will retain information. I will just drive it for like a month and then go for Emissions inspection. Then when i pass, i just flip the switch and it's back to the way i want it... a Stupid computer dumping Fuel for Performance!
http://www.ntpog.org/mods/fifth-afc/ecu.shtml
Exact instructions on how to perform this modification on your OBD2 Prelude (97-01).
(I'm an ASE certified/ Ford Motor Co. Certified Automotive Technician)
I hope this clears things up. The FIT for me is a Gas saving, reliable Honda! And a little performance is good enough for me! Most importantly for me with this vehicle is to only spend $28.50 for 9.0 gallons of gas which goes 330 miles per tank!!!
GettiNaFit (Already Got it!!!)
Linear Mode
