No Spark

[4u2nv]

i am also new to the 240z scene and i have gotten my car from a single owner but he rebuilt the engine and didn't put anything back in the engine bay (ugh) after 3 months of messing with wiring i've got it to the point where it turns over but i'm getting no spark, i've replaced the contacts, and the condensor, plugs, wires, rotor, cap. what has me stumped is the resister your speaking about, i think that's my problem, i know these coils need a resister but i thought they were mounted in the wiring somewhere, what is the white box under your coil in one of your picturs and where can i find one of those?

[Mikez73]

That's it although it doesn't look like a stock ballast resistor. If you need one I have one that came with a coil I bought.

[cdarch]

4u2nv, that white box is the ballast resistor. It came from Black Dragon.

[4u2nv]

how much you want for it mike? shipped to 20657

[sblake01]

It's just a standard ballast resistor. Fits several cars. Go to your local Checker, Shucks, Kragen, O'Reilly (whatever it's called in your part of the country) and ask for a BWD ballast resistor, part number RU504.

[Mikez73]

how much you want for it mike? shipped to 20657

You can have it. Just pay shipping. Should fit nicely into a small flat rate USPS priority box.

[4u2nv]

installed the ballast resistor, i'm pretty sure correctly, still not getting spark...any ideas?

[Mikez73]

Do you have power at the b/w wire to the coil and the b/w wire to the ballast resistor?

[Gary in NJ]

The tell-tale sign of a bad ballast resistor is the car will start with the starter engaged, and then stop running as soon as you release the key from the start position.

If that's not how your car is behaving, you're chasing the wrong problem.