ok so i just put a b16a2 into my 96 ek coupe and everything clipped right up but i get no tach and no speedo. i am using the p2t ecu and it has three clips but the engine harness(also the si one) that clips into the ecu only has two clips. what does that mean? arent all si's obd2b? what do i need to do to get the gauges to work(temp and gas works)? the car runs perfect but has a CEL but it wont flash what code(s). HELP ME GUYS THANKS A BUNCH

 

https://honda-tech.com/zerothread/1901557

This will explain how to get the CEL to flash, then let us know what your throwing.

 

i tried both of those ways but the CEL just stays on. it wont throw the code. thats why i was wondering if i have to use a diffenr engine harness or something. also have another question... will the rear disc off a dc integra fir on a ek like mine? i know it will for eg and crx... but what about the ek?

 

you have to use the 96-98 Ex engine harnes you can't use 99-00 harness on 96-98's

 

ight cool thatks alot guys. what about the whole rear disc conversion?

 

Obd2a 96 - 98
Obd2b 99 - 00

There are multiple great writeups on here about rear disc conversions as well.