Skip to content
View in the app

A better way to browse. Learn more.

Ultimate Subaru Message Board

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

No spark troubleshooting

Featured Replies

1987 Brat, EA81 engine, EA82 SPFI conversion.

 

Months ago, it didn't restart when I shut down to put gas in. I towed it home, and somewhat ignored it. One day I tried to start it, and it did. The next time I tried to start it, it didn't again. Which is where it's at now, no start. And it's not getting spark. I tested the coil, which is in spec. It has 12V at the primary connections. I tested that there is voltage going to the crank sensor, which reads 12, 5, 5, 0V on the 4 wires going to it. When I put a test light on the primary side of the coil, I see no indication that either is disconnecting while I crank it.

Intermittent start problems... 

Maybe it is a bad wire.  Check the wire from the coil to the distributor.  May also want to check other wires for possible break.

Maybe doing look at conversion..fusible links? It turn over? You not saying specifically

  • Author

Hitachi distro, with the 4 wire optic crank angle sensor.

Yes, it has fusible links. It cranks all day long, but doesn't get any spark.

Crank angle sensor could be dead :(

Got any codes happening?

Cheers

Bennie

6 fast is the no code code.   All codes for trouble are 2 digit.

Is the distributor rotor turning when you crank ?

9 hours ago, Speedwagon said:

It is just flashing 6 fast with the key in the on position.

Yeah I think 6 is just saying it's a Canada or California 5MT. a spec code, not a trouble code.

 

From Le book:

IMG_20180624_170954.thumb.jpg.e86e8a1e3dadfb4ecd25a40a211d769f.jpg

IMG_20180624_170958.thumb.jpg.787d70a393d750d0891a18e3958a0288.jpg

Edited by Brianmitchtay

  • Author
6 hours ago, Dee2 said:

Is the distributor rotor turning when you crank ?

Yes, it turns

  • Author
3 hours ago, Brianmitchtay said:

Yeah I think 6 is just saying it's a Canada or California 5MT. a spec code, not a trouble code.

 

From Le book:

IMG_20180624_170954.thumb.jpg.e86e8a1e3dadfb4ecd25a40a211d769f.jpg

IMG_20180624_170958.thumb.jpg.787d70a393d750d0891a18e3958a0288.jpg

Is that a factory manual? Does it have a procedure for testing the crank sensor?

17 hours ago, Speedwagon said:

Is that a factory manual? Does it have a procedure for testing the crank sensor?

Yes it certainly is, let me pull it back out and see if it does.

 IMG_20180624_171005.thumb.jpg.4df5ecf98a1816ad58c5737bf03afa87.jpg

IMG_20180625_133847.thumb.jpg.9c18005990435005c70d85211aeacf9e.jpg

Ok so far as I can tell, in the SPFI section of the fuel injection chapter there's some info on troubleshooting the two possible trouble codes, 11 (no reference pulse) and 13 (no position pulse). also a wiring diagram of the sensor. I'll post those as well as the diagram of the layout of the control unit connectors. That should probably be what you'd need to check all the wiring. It says there's a more thorough write up of the distributor and ignition coil setup (including crank angle sensor) in another volume - Chapter 6-1 Engine electrical system. If you'd like I can pull that one out and see what it says. I'll be at the library all day today so just say the word if you see this post in time.

Edited by Brianmitchtay

troublecode11.thumb.jpg.d6db178a8715ea829a7e7bf129735281.jpg

troublecode11-2.thumb.jpg.5f96e663b22e3e2aa403107cd9149a51.jpg

Hopefully this helps! and good luck! All the wires around my SPFI control box are so stiff and old that when I move them around to check continuity and resistances I always feel like I'm probably breaking more wires and causing more harm than good. ha

maybe a hair dryer NOT a heatgun, might help soften the plastic of the wire. I doubt the copper has work hardened

  • 1 year later...
  • Author

It's only been a year and a half, but I finally fixed this! Thanks to Brainmitchtay for those pictures! That helped me isolate it, and replace the disty fron a JY one. With that, it fired right up!

After I got the new car about the same time this happened, my motivation to fix it just wasn't there.

Edited by Speedwagon

  • 1 year later...

Hell yeah man! I'm stoked you got it figured out and happy that my pictures helped - even if it took a while.

 

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Account

Navigation

Search

Search

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.