TantricScorpio

I just put in my rebuilt motor and now wonder it won't start, there's no spark. My wiring harness is all hooked up, but I can't find why there is no spark, where else can I check to get some sparkage?

dr0x

Battery?

Bigretardhead

does it turn over?

TantricScorpio

yes it turns awesome

HAILERS

Either the 40amp fuse in the engine compartment is shot or the ENGINE fuse in the crew compartment, or the cas is not connected up or the ECU isn't hooked up.

See the coil circuit here: https://www.rx7club.com/forum/attach...postid=1398836

See the ringout of the cas circuit here: https://www.rx7club.com/forum/attach...&postid=580160

See the fuse box here: https://www.rx7club.com/forum/attach...postid=1398717

You could go to the LEAD coil assy, and if you had a meter, you could take the small white connector off the coil, the one with two wires. One is black/yellow. It should have 12v on it. If it does not, look at the schematic above.

If it does have 12v, look at the other wire and see if it has 5volts on it.

If you know how to install a cas, pull your cas but leave the connector on it. Turn the key to on, not start. Spin the cas gear with the spakplug wires on or near the chassis. IF the circuit is good, the wires will spark. This saves wear and tear on the starter. Lets you know for sure the spark is/is not there.

Bridgeported

Check all the connections on the compenents of your ignition system. What are your plugs like?

HAILERS

You could go to the LEAD coil assy, and if you had a meter, you could take the small white connector off the coil, the one with two wires. One is black/yellow. It should have 12v on it. If it does not, look at the schematic above.

If it does have 12v, look at the other wire and see if it has 5volts on it.

If you know how to install a cas, pull your cas but leave the connector on it. Turn the key to on, not start. Spin the cas gear with the spakplug wires on or near the chassis. IF the circuit is good, the wires will spark. This saves wear and tear on the starter. Lets you know for sure the spark is/is not there.

TantricScorpio

Sorry guyz, I'm an idiot, the EGI Comp. fuse was not in, so now i have a couple other questions. How do I know if I'm getting fuel? when the EGI fuse was in and I turned it over i didn't smell fuel after I took the plugs out, but I know there's fuel going to the motor. The othe Question is, on the driver side of the motor, there are two fuel hoses, which one goes to which line? Thanx for your help so far.

HAILERS

You should be able to hear the fuel pump if you jumper the yellow fuel connector on or near the right strut tower and the key to on, not start.

Are the fuel lines connected right at the engine. The hose from the fuel filter goes to the front metal pipe.

If the plugs are out, and all fuses are in and you spin the engine, a fog of mist will come out of the sparkplug holes. IF the fuel is being delivered.

JasonL

Fuel Pump plugged in? Most people unplug them in the engine removal process...