just thought i would boast and brag about my newest install. -My 1990 dx hatchback has been converted to obd1 for ease of hondata installation. I really did not want to use the push-button contraption for setting rev limits and vtec x-over etc... It is the stage 2 system, and that is a US p28 ecu. With the conversion, the car just last week passed maryland state emissions testing. -I wired in a toggle switch as the jumper wire so I can easily run the ecu as stock, especially since gasoline prices are skyrocketing. -My uncle does soldering work for a living, so he was able to do the chipping for me . -The OBD0 to OBD1 conversion harness was purchased from jkobdconversionharness.com. Jason was really a great guy to deal with. Very prompt with communication and is also very knowledgeable on the subject. -I have the romeditor software and pocket programmer so I am all set. I'm probably not going to gain much now, but I plan on having a sick all motor build for an end-of-summer project and hondata will play a big part in that setup. Currently, I am running a GSR base map. PICS: *the 4 purple wires run to the 4-wire oxygen sensor that is required for the OBD1 setup. *you can see the toggle switch mounted to the case of the ecu. *I know it looks like a hack but really its not. *thats a 94 gsr dizzy. If you have any questions about the install, post 'em up and i'll answer to the best of my abilities. Enjoy. Mods list in sig.