I read on pgmfi.org that you can just keep using the mpfi injectors with the injector resistor box, BUT, i've also heard you have to get rid of the injector resistor box, and run obd1 injectors.

I dont' remember which are saturated and which are peak hold, BUT. Is it possible that you can run either with an obd0-obd1 conversion harness?

Also, do you have to relocate the 4 wire O2 sensor downstream to read the output of all 4 cylinders, or is the stock location okay?

 

The OBD0 injectors are peak-hold, the OBD1 are saturated. You can use either: keep the resistor box and run the OBD0 or bypass the box and run the OBD1 injectors.

I would move the O2 sensor, otherwise I would expect some funny drivability problems, stumbling and all that.

 

Crap. What do you know about hondata and the new s300 system?

Do I need to already own a p28 ecu, then send it to get chipped? Is the $595 price include the alteration, or just buying the s300 chip, then you gotta pay more to get it installed?

 

I haven't seen too much about the S300 system, but the price of the system only includes the chip. You supply the ecu and the socketing. You can also convert a P06 or other OBD1 ecu to a P28, as they are usually cheaper to come across, and use the same internals minus the VTEC components.