Wont Start!! HELP

[evans]

hey guys,
I just swapped a new engine into my 90 civic dx. I never realized that the new one was a D15B7.. and the old one is D15B2.. its all hooked up, and fires for a second but will not start..

Is it the ecu? or something else??

 

[jlicrx]

what distributor is on it?

 

[evans]

thanks guys but I just swapped ecus and it worked