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OBDO Tune? Is it possible


VtecRex

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Can you tune a obdo crx with a b-16 swap in it. What do u have to buy if you can do this. Tired of having a non-tuned ride. Bought a innovate wideband O2 sensor and a b&m fuel pressure regulator, but not installed yet. This is about the only way I can think to somewhat tune the thing. I think it runs way to rich. I guess I will find out when the wideband goes in. Need as much help on this topic as I can get. Thanks Richard

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datalogging is moocho for the most part. and yes im pretty sure you can chip and tune an OBD0 ecu. i could be wrong but i think i remember reading somewheres you can. just not OBD2.

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Zdyne

 

Zdyne is the option for OBD 0 applications like the 90-91 Integra. Like Hondata, Zdyne offers 2 systems that support turbo applications, the Silver SECU and Gold SECU. The Silver SECU is not user adjustable and comes with a preprogrammed engine tune that will work for most boosted applications. The user can select options such as hot and cold rev limits, and VTEC and NOS activation RPM levels which are programmed at the factory. The Gold SECU offers full user adjustability of fuel and timing curves through the use of a Windows based application and a serial cable to connect to the ECU, no ROM burning. None of the systems offer data logging.

 

SECU.jpg

 

Zdyne is well supported by most shops that run a dyno and offer tuning services. Unless you have the equipment (wide band oxygen sensor and/or exhaust gas temperature gauge) and experience it is recommended that the ECU be setup and tuned on a dyno.

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The wideband O2 sensor works great, my buddy has one on his hatchback. Now I know you can chip the crx si computer, and tune it , but I haven't seen a chip for the pr3. we wasn't sure if we chipped the computer if it would screw with the V-TEC. Also on that zydne, which one would I need? Gold SECU or B16A One Wire Conversion. Or will either work.

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