I put a CRX si ecu in 89 civic dx and my car dosent seem to start whats the problem i have an crx si tranny in it can someone tell me what else i need

 

The Si ecu is looking for 4 fuel injectors, and it's only getting 2. Thats the wrong ecu for that engine, put the DX one back in. To use the Si ecu you need to convert to multi-port injection, there are many threads on this if you search.

 

please do some research before you do anything to your car. Search the web and this site for writeups that are credible. You have a LOT to learn if you don't know the differences btw a dx motor from an si.