i have a 99 si with stock motor and i want to get a p28 ecu, harness, and hondata but my friend said he has a gsr(99-00) ecu and said that would work in my car, would that do anything at all? and would i still need a obd1 ecu and conversion harness for hondata? or will hondata work with the gsr ecu? thanks

 

Hondata only works with the OBD1 ecu.

So your friends ecu isn't what you want to go with. For one it isn't made to run the B16 and the IAB/vtec engagement points will be off.

So if you plan on tuning the car get the conversion harness, obd1 ecu and whatever tuning software/hardware you want to get tuned with.

 

thanks for the info! now time to find a p28 and hondata

 

You can buy hondata pre-installed in an obd1 p28 from an authorized dealer.