Spark comes and goes.
Thread Starter
Burning Brakes
Joined: Feb 2011
Posts: 849
Likes: 0
From: Woodland California
Spark comes and goes.
Sometimes it has spark and runs.
Sometimes when I go to start it it doesn't have any spark at all.
It will run very strong until I shut it off, then sometimes no spark when I try to start it again.
Had new key made 3 months ago.
I just don't know.
Ralph
Sometimes when I go to start it it doesn't have any spark at all.
It will run very strong until I shut it off, then sometimes no spark when I try to start it again.
Had new key made 3 months ago.
I just don't know.
Ralph
Thread Starter
Burning Brakes
Joined: Feb 2011
Posts: 849
Likes: 0
From: Woodland California
I was thinking more along the line of anti-theift system.
It's Getting fuel. This is part of the ignition chip/ switch setup.
I have a by-pass set up on that.
The clutch relay has been bypassed, couldn't find another one. That was attached to the starter.
But what turns off the ignition?
Ralph
Melting Slicks
Joined: Aug 2008
Posts: 2,082
Likes: 50
From: Palmdale CA
Maybe a VATS related issue, did the problem start right after getting the key made. just a thought!
http://forums.corvetteforum.com/c4-g...hat-works.html
http://forums.corvetteforum.com/c4-g...hat-works.html
Last edited by desertmike1; May 9, 2012 at 01:34 PM.
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Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
If all the connections are tight in the distributor, I might try replacing the coil if that the one that is mounted in the cap. It might be intermittent.
The pickup coil I think might be suspect to a lesser degree.
The pickup coil I think might be suspect to a lesser degree.
Last edited by pcolt94; May 10, 2012 at 10:31 AM.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
When it doesn't start, check the pink wire going into the distributor (unplug it and measure the voltage). It should have 12 volts on it when the ignition is on. This voltage comes from the ignition switch, so that will at least give you a better idea of where the problem is.
Another test you could try is to disconnect the EST connector. That will bypass the part of the ignition module controlled by the ECM.
Another test you could try is to disconnect the EST connector. That will bypass the part of the ignition module controlled by the ECM.
Thread Starter
Burning Brakes
Joined: Feb 2011
Posts: 849
Likes: 0
From: Woodland California
When it doesn't start, check the pink wire going into the distributor (unplug it and measure the voltage). It should have 12 volts on it when the ignition is on. This voltage comes from the ignition switch, so that will at least give you a better idea of where the problem is.
Another test you could try is to disconnect the EST connector. That will bypass the part of the ignition module controlled by the ECM.
Another test you could try is to disconnect the EST connector. That will bypass the part of the ignition module controlled by the ECM.
Ralph