i have a 94 civic kept blowing head gasket put in new motor the said it was a 2000 does computer or other things need to be switched also thanks

 

Yes, it will need a different computer.

If you swapped in an engine from a 2000 Civic (which is OBD2b) into a 1994 Civic (which is OBD1), you'll need the correct computer for it as well as the wiring harness. It is possible to buy a conversion harness that will go between the main wiring harness and the computer to make it work.

It would help if we knew what kind of engine the new one was.

 

If the new engine is a D16Y7 or D16Y8 you should be able to just use the head and block assembly-- swap your 1994 intake and exhaust manifolds, wiring, distributor, etc onto it.

 

Yea, if you want a better answer, we need more info on the new engine.

 

where do i find the motor number and size was told it 1.6

 

what motor do you have now and what motor did you have?

 

its d16y8 sound right

 

Yes, that's right. 1.6L SOHC vtec engine. I believe the ECU you need is a P2P. It needs to match your transmission type, auto or manual.

 

thanks a bounch that might take care of some of the other problems i hope will i need to change any thing else

 

wait..........stop........

my question about what was yur previous motor wasnt answered.

no she does not need a p2p ecu or an obd2 harness or anything, thats all wrong.

she has a obd1 car. she can just use the d16y8 head and block and put EVERYTHING from the old motor onto the new engine. now if she has a ex model (d16z6 old motor) she will already be set up fro the vtec engine and everything will plug n play and she can use her old ecu (p28). now if she has a dx model and had the d15b7 motor she will need to find a p28 ecu and plug it up and run the 2 wires from vtec to make it work, and still swap everything over from the old motor and stay obd1.