Re: COPO Chevelle start/run problems
 

The little yellow wire that runs from the solenoid powers the ignition when the key and switch are in the start position. When you release the key, you would be running on the normal ignition switch and the resistor wire running through the rest of the harness. If the ignition switch or the resistor wire is at fault, it could start or run in the start position, but not in the run position.

Re: COPO Chevelle start/run problems
 

When troubleshooting a no run condition , I always start with a test light at the coil + terminal. With the ignition in RUN position there should be 12 Volts at the + terminal . If no voltage there go to the 12 ga purple wire on the Ign switch and test . If you have power there ,find the open between the two places you just tested . If no power at the switch ,adjust the switch first ,if still no power replace the switch.

Re: COPO Chevelle start/run problems
 

Purple wire just energizes the solenoid. It does have to go through the neutral safety switch first though. It doesn't really have anything to do with the actual ignition circuit.

Re: COPO Chevelle start/run problems
 

The power to the ignition is overrode from the starter solenoid. It then gets full battery voltage as opposed to resisted voltage.

Different circut, thus different results.

Tim

Re: COPO Chevelle start/run problems
 

Thanks guys. So, ...... + side of coil had 10 volts in the start position, but 0 volts in the run position. Put a wire from + battery direct to + coil and started right up and ran. Looks like the wiring harness (resister wire) is no good as predicted by you folks. New wiring harness on the way!
Thanks to all the responded!
Peter

Re: COPO Chevelle start/run problems
 

Happy to hear our combined advice worked. Now I can finally tell my wife that someone, somewhere in the universe followed my advice and achieved success.

[img]<<GRAEMLIN_URL>>/grin.gif[/img]

Re: COPO Chevelle start/run problems
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: njsteve</div><div class="ubbcode-body">Now I can finally tell my wife that someone, somewhere in the universe followed my advice and achieved success.

[img]<<GRAEMLIN_URL>>/grin.gif[/img] </div></div>

Doesn't that feel good? It has likely happened many times before, you just didn't know it..... [img]<<GRAEMLIN_URL>>/wink.gif[/img]

Re: COPO Chevelle start/run problems
 

[img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img] Some smart dudes round here........... and alot of been-there-done-that folks too!!!!!!!! [img]<<GRAEMLIN_URL>>/wink.gif[/img]

Re: COPO Chevelle start/run problems
 

Excellent - that is why i love this site, so much experience and so ready to help!

Let me renew my membership NOW!!

Re: COPO Chevelle start/run problems
 

[img]<<GRAEMLIN_URL>>/headbang.gif[/img] [img]<<GRAEMLIN_URL>>/headbang.gif[/img] Let's get <span style="font-size: 26pt"><span style="font-weight: bold"><span style="font-style: italic"><span style="color: #FF0000"><span style="text-decoration: underline">FIRED UP</span></span></span></span></span> Eddie!! [img]<<GRAEMLIN_URL>>/headbang.gif[/img] [img]<<GRAEMLIN_URL>>/headbang.gif[/img]