I have a Acura integra ls and it won't start up after we change heater core and I am getting no spark and I got a new ecu and ignition module

 

Does it turn over and is it getting gas?

 

Prolly didn't plug everything back in when you changed the heater core, go over ALL the wires under the dash and make sure they are all plugged in.,

 

Ya it turn Over but it get no gas

 

So no gas or spark?

 

Yes

 

Check all your ground wires under the dash and in the engine bay, also check your fuel pump to see if its working ( it will make a buzzing noise when you turn the key to the on position)

 

Check fuse n relay

 

Make sure ecu is plugged in properly n make sure its the right ecu

 

Basic test, turn ign. switch to the run position, [NOT all the way to start] listen for the fuel pump priming.

When you turn on the ign. the cluster will "light up" including the CEL, at the same time the fuel pump will start running, [priming] after no more then a few sec. the CEL will go out and the fuel pump will stop priming, is that happening? 94