Jump to content
Remove Ads

Featured Replies

So I don't know that I've made any progress yet this weekend.

I went to test fire the car. It will crank but acts like it has no spark.

I checked voltage at the coil in the run position and it doesn't have any voltage there.

I ran a jumper wire from the battery to the hot terminal of the coil and when she turned the key on you could here what sounded like the starter solenoid getting pulled in. I still couldn't get it to fire up.

The only upside is it is pumping fuel from the tank. Although a portion is all over the shop floor now... oh and I do have headlights until the one burned out but no high beam indicator

Super frustrating angry



Remove Ads
2 hours ago, Patcon said:

So I don't know that I've made any progress yet this weekend.

I went to test fire the car. It will crank but acts like it has no spark.

I checked voltage at the coil in the run position and it doesn't have any voltage there.

I ran a jumper wire from the battery to the hot terminal of the coil and when she turned the key on you could here what sounded like the starter solenoid getting pulled in. I still couldn't get it to fire up.

The only upside is it is pumping fuel from the tank. Although a portion is all over the shop floor now... oh and I do have headlights until the one burned out but no high beam indicator

Super frustrating angry

Did you happen to check for voltage on the black/white wire on the ballast resistor with the key in ON?

What is the resistance between the engine block and battery negative?

If you run the hot wire to the coil, measure voltage to ground on coil to negative while someone else is cranking the engine. You should see it at 12VDC+ and periodically drop when the ignition system connects it to ground. Also I can't remember, are you using points or an electronic ignition?

2 hours ago, SteveJ said:

Did you happen to check for voltage on the black/white wire on the ballast resistor with the key in ON?

What is the resistance between the engine block and battery negative?

If you run the hot wire to the coil, measure voltage to ground on coil to negative while someone else is cranking the engine. You should see it at 12VDC+ and periodically drop when the ignition system connects it to ground. Also I can't remember, are you using points or an electronic ignition?

I'm using the 280zx matchbox. No ballast resistor on the car. I will check those other items when I'm back in the shop

I will double check that but I don't believe any of that has been changed since my last test fire. I did remove the combo switches and reinstall. Maybe I messed something up there

  • 3 weeks later...

Cody has been back from Fla for about a week. He finally got a break. We had a short family vacation and then spent all weekend working on cars! He spent 3-4 hours tracing the turn signal circuit. In the end we switched back to the original hazard switch and that made everything light up the way it should. The flasher was bad but I have a new electronic one to use.

20250809_152316_resized.jpg

We also made short jumper harnesses to go between the US harness and the JDM tail lights.

20250809_204808_resized.jpg

20250809_204813_resized.jpg

20250809_204827_resized.jpg

20250809_204829_resized.jpg

20250809_210623_resized.jpg

20250809_210625_resized.jpg

The green and yellow will come from the brake switch at the pedal and then it should all work appropriately.

We also got the car fired up yesterday. I bought a cheap L6 electronic dizzy off ebay. I swapped it in for the old match box dizzy and it fired right up. I guess the matchbox went bad the last time I tried to fire it up because it sort of bumped over for a sec and then no spark. We'll see how long this dizzy lasts

Ordered a reverse switch for the transmission and that may be sorted.

Need to sort power for the blower fan and some odds and ends electrical and it will be close to ready to test

  • Author
  • Popular Post
comment_678016

We checked the timing. It was about 14 with 32 or so all in

Here are my mechanics

283830246207335565.jpg

5921286135284960899.jpg

7540854609652230838.jpg

Morgan is home from school for a few weekends and her boyfriend Mark was here too. They're all good with tools and willing to help

Create an account or sign in to comment

Remove Ads

Important Information

By using this site, you agree to our Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.