Hi all

I unbolted my fuel rail and put each injector in its own individual cup so that when I turn the key I can see if they are all injecting identical amounts of fuel and for some reason am not getting pulse with the rail unbolted, but the car runs with it connected.

I tried directly connecting the efi ground to the negative battery terminal but still not getting pulse. All 6 injector connectors are getting power (confirmed with a test light). Any idea what I'm missing here as the only parts that have been unbolted are the ones related to the fuel rail/its removal.

I made a video which might help here

Any ideas?

Edited Friday at 11:03 PM2 days by chaseincats

The injectors open after every third spark. Spraying half of the fuel called for.

You can test by spinning the engine with the starter or by disconnecting a wire from the coil and tapping it to its terminal quickly, with the key on. There will be a small spark each time and one of the spark plugs will spark so be careful. Every third tap should cause a squirt of all six injectors.

47 minutes ago, Zed Head said:

The injectors open after every third spark. Spraying half of the fuel called for.

You can test by spinning the engine with the starter or by disconnecting a wire from the coil and tapping it to its terminal quickly, with the key on. There will be a small spark each time and one of the spark plugs will spark so be careful. Every third tap should cause a squirt of all six injectors.

Thanks, I didn't know it took that many rotations. I held the key this time for about 10 seconds and got a pretty uniform flow so it looks like we're good there. It looks like the far right injector is low but that's just the light for some reason.

Edited Saturday at 12:58 AM2 days by chaseincats