need help, just bought 92 civic, it starts fine in morning and drives great but once i shut off it wont start back up, i need to wait about an hour. i replaced the main relay, and it sill wont start after shutting off.please help.

 

I'm thinking about your fuel pump might be going out...but that's just one suggestion. When you turn the key to that 2nd click you should hear the fuel pump prime the fuel lines for about 2 seconds then stop...if you hear nothing..it's your fuel pump.

 

fuel pump pressure has been checked and not a problem, it cranks over but doesnt fire up. Ive been reading up, and i believe it could also be a fuel relay? im desperate. ill try anything.

 

The main relay is the "fuel relay". It's possible you got a bad one. You should actually hear the fuel pump run when you turn the key on and don't try to start. Also the check engine light should come on and then go out.

All testing of course has to be done while the car won't start.

Once you're sure the fuel is flowing and still won't start, unplug one of the spark plug wires and check for spark.

 

Hello,
You have to have fuel and spark to fire an engine. Have you checked for spark to the plugs? One way to check for spark is to pull one wire off the plug and ground it to the block crank in over and see if there is power to it.Please keep us posted on the problem, we all want to know how it was solved. Thanks,2010civiclx