could a 99-00 si harness(obd2) plug into a b16a2 from an sir2(92-95)(obd1) for my swap because my stock harness doesnt. some people say to stick wit obd2 because it is very complicated converting from obd2 to obd1.

since the motor is obd 1, stick with it. A conversion to obd 2 is possible, but it is my understanding that it is easier to convert an obd2 car to obd1. Hell, I believe there are companies that make conversion harnesses. Try hasport or placeracing. What I do know for a fact though is obd2 cars are a bitch to tune, the ecu has a habit of setting itself back to stock (don't ask how).

people say converting ur car from obd2 to obd1 is very complicated. they say it would be easier keeping my car obd2.

so could a 99-00 si harness plug into my b16a2 from a sir2(92-95). because if it did i would buy an si ecu and my car would still be obd 2.

people say converting ur car from obd2 to obd1 is very complicated. they say it would be easier keeping my car obd2.

so could a 99-00 si harness plug into my b16a2 from a sir2(92-95). because if it did i would buy an si ecu and my car would still be obd 2.

The b16a2 is from a 99-00 si (yes is obd2), and is a USDM motor. The sir2 (92-95) is a JDM motor and is obd1. You can buy the conversion kit. All you do basically is plug in your car's obd2 harness into one side, the other side connects to the obd1 ecu. JDM motors DO NOT have numbers following them.
-there is the JDM b16a from the integra xsi, then the sir1 and sir2
-the USDM counterparts are b16a3 (del sol) and b16a2 (99-00 si and some del sol models)

The b16a2 is from a 99-00 si (yes is obd2), and is a USDM motor. The sir2 (92-95) is a JDM motor and is obd1. You can buy the conversion kit. All you do basically is plug in your car's obd2 harness into one side, the other side connects to the obd1 ecu. JDM motors DO NOT have numbers following them.
-there is the JDM b16a from the integra xsi, then the sir1 and sir2
-the USDM counterparts are b16a3 (del sol) and b16a2 (99-00 si and some del sol models)

do u know where i could buy a conversion kit. what is this about(there is the JDM b16a from the integra xsi, then the sir1 and sir2
-the USDM counterparts are b16a3 (del sol) and b16a2 (99-00 si and some del sol models)

Ok let me break down the b16 motors

US motors
b16a3 - odb1 motor - found in up to 95 del sol si
b16a2 - odb2 motor - found in later del sol's and the 99-00 si

JDM motors (do not use numbers after motor codes like US does)
b16a - obd0 -original b16a motors, found in early model integra xsi
b16a sir1 - odb0- jdm crx sir motor - almost identical to orig b16a
b16a sir2 - odb1 - 92-95 civic sir - higher CR -+10 hp - hyrdo tranny
b16b - civic type r motor

Here is an example harness make by skunk2 (you could prob find cheaper) http://www.coximport.com/store/sk-201-05-0120

so if i would buy this conversion harness i'll i have to do is modify my stock dx harness so it can plug into my b16

Yep thats the whole idea of it.

you can pick up a conversion harness for around $100 off of www.groupbuycenter.com

http://www.jdmhondaparts.com/ecu.htm deals with conversions, they will have the answer for you.

b16a sir1 - odb0- jdm crx sir motor - almost identical to orig b16a
b16a sir2 - odb1 - 92-95 civic sir - higher CR -+10 hp - hyrdo tranny

Almost, but not exactly. SiR and SiRII are not generations, they are trim levels, like Si, EX, VX, etc...they do not designate what year a car is, only the options it came with. Both were availible 89-00