Jump to content
HybridZ

L28 w/zx ign swap in 72.. runs w/key in start position


Recommended Posts

Hey Z Fellers,

 

I have a 72 that I have swapped an 81 drivetrain into, including the distributor. I followed a link on this site for the wiring of the distributor. Last sunday, I attempted to start it for the first time.. It started! But as soon as I realease the key from the "start" position it dies. Like its only completing a circuit in that position. I have not touched the tach. I know Im close and it must be simple.. I only have a few hours on sunday to touch it again, so Im hoping to have a little more direction, rather than spending my few hours on this site searching. Any trouble shooting direction would be appreciated. Thanks in advance.

 

datjunky

Link to comment
Share on other sites

Hey Z Fellers,

 

I have a 72 that I have swapped an 81 drivetrain into, including the distributor. I followed a link on this site for the wiring of the distributor. Last sunday, I attempted to start it for the first time.. It started! But as soon as I realease the key from the "start" position it dies. Like its only completing a circuit in that position. I have not touched the tach. I know Im close and it must be simple.. I only have a few hours on sunday to touch it again, so Im hoping to have a little more direction, rather than spending my few hours on this site searching. Any trouble shooting direction would be appreciated. Thanks in advance.

 

datjunky

 

 

I am seeing this more and more lately. I dont know if this applies to you, but you cannot just remove the stock ballast resistor, you have to make a jumper to bypass it, otherwise, the ignition will only get power during the "start" phase. Hope this helps.cool.gif

Link to comment
Share on other sites

I am seeing this more and more lately. I dont know if this applies to you, but you cannot just remove the stock ballast resistor, you have to make a jumper to bypass it, otherwise, the ignition will only get power during the "start" phase. Hope this helps.cool.gif

 

thanks... But I did use a jumper on the ceramic resistor.. Any other thoughts?

Link to comment
Share on other sites

thanks... But I did use a jumper on the ceramic resistor.. Any other thoughts?

 

The wiring chart below might help. Dtsnlvrs is right, in your current setup you probably get power only via the start position of the ignition key, so the engine dies as soon as the key is back to ignition.

post-9530-12684320908138_thumb.png

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...