this is for my brother who has a 2k civic Si, this civic is boosted to 7-9 psi, running stock ecu with a piggy back system for 2 extra injectors (6 total) .. i know this is an old style of doing things.. but the plan is getting rid of the 2 extra injectors and going w/ rc650s.. now the question that i have .. is if he does an obd2 to obd1 harness and runs a p28 = hondata.. will he run into any problems with changing to an obd1 ecu? (other then emmisions) plus can anyone list of the bennifits of doing this conversion? any advice helps..thanx

 

no. obd-1 is better for tuning purposes