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82 keeps running with the key off

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Old Aug 9, 2009 | 09:19 PM
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Default 82 keeps running with the key off

I just took the cfi off and and went to a carb now the engine keeps running with the key off! Any ideas? thanks
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Old Aug 9, 2009 | 09:24 PM
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Originally Posted by gopackamx
I just took the cfi off and and went to a carb now the engine keeps running with the key off! Any ideas? thanks
that is funny, they usually don't run with the key on

When you say keeps running, dieseling, or full on put it in gear and drive away?
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Old Aug 9, 2009 | 09:38 PM
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everything shuts off but the engine. it will run for a few seconds to quite a few minutes!
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Old Aug 9, 2009 | 09:46 PM
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Originally Posted by gopackamx
everything shuts off but the engine. it will run for a few seconds to quite a few minutes!
There is a good chance that the carb is not set up correctly and not closing properly. It may still be partially open and allowing air to be drawn in.
You could also check the timing.
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Old Aug 9, 2009 | 09:59 PM
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To clarify a bit it is not dieseling or running on, it is running smooth. I can get in and drive it if I unlocked the column, it will run for a random amount of time till it deceides to shut off. It acts like the altenator is back feeding the system, but it did not do that till I took off the fuel injection. Thanks for the help so far.
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Old Aug 9, 2009 | 10:05 PM
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Originally Posted by gopackamx
To clarify a bit it is not dieseling or running on, it is running smooth. I can get in and drive it if I unlocked the column, it will run for a random amount of time till it deceides to shut off. It acts like the altenator is back feeding the system, but it did not do that till I took off the fuel injection. Thanks for the help so far.
so the coil is getting current even with the key off?
Time to get the test light, DVM, circuit tester out.

I take it the distributor is not OEM.

Retrace your rewire, hope it is simple.
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Old Aug 9, 2009 | 10:13 PM
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The distribiter is a stock hei, so it plugs in the same as the large cap efi distribiter I took off. I unplugged the cfi wiring harness at the firewall and left the rest of the wiring alone. I took the fuel pump out of the tank and put a mechanical pump on it so as long as the engine runs it keeps pumping. I was hoping that is as easy as the diode in the altenater or something. Thanks again.
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Old Aug 9, 2009 | 10:27 PM
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Originally Posted by gopackamx
The distribiter is a stock hei, so it plugs in the same as the large cap efi distribiter I took off. I unplugged the cfi wiring harness at the firewall and left the rest of the wiring alone. I took the fuel pump out of the tank and put a mechanical pump on it so as long as the engine runs it keeps pumping. I was hoping that is as easy as the diode in the altenater or something. Thanks again.
If the key is off, there should be no juice to the coil/dist.

I can't see how a diode could let juice get through the key?

I ain't the smartest guy, what is your reasoning about how the diode keep juicing the coil?
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Old Aug 10, 2009 | 12:15 AM
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I assume you removed or disconnected the ECM, maybe you mentioned that above. You also mentioned you removed the electric in tank fuel pump. I have not tinkered with this on mine, but I thought the fuel lines are part of the pump. Did you have to put in new fuel lines as well. I remember reading the electric fuel pump runs off of the ECM for the CFI. But its probably good that you have removed and gone to a carb set up. Did this just start or has it been running fine up until now?
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Old Aug 10, 2009 | 08:45 AM
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When I get time I'll look at a wiring diagram but in the mean time look at the fuse box and see if you have a large pink wire plugged in one of the taps. If so unplug it and see if that helps. If not remove the fuel pump fuse. (I know there is some other feed to the large pink that goes to the dist. that can bypass the ignition switch.)

edit - I just tried to get into the 82 wiring diagram-that thing is brutal,instant headache !!! Pull any fuses you don't need like Inj 1 and Inj 2. I'll have to look at that diagram later if some of these suggestions dont work for you.

Last edited by ...Roger...; Aug 10, 2009 at 08:59 AM.
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Old Aug 10, 2009 | 08:51 PM
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thanks for all the ideas. It looks like the ecm fuse cured it. what the heck! I did remove the pump out of the tank and lengthened the exsisting metal line with a compression fitting and 3/8 metal line. Now it purrs and runs alot better so far. thanks again all
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Old Aug 10, 2009 | 08:55 PM
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Originally Posted by gopackamx
thanks for all the ideas. It looks like the ecm fuse cured it. what the heck! I did remove the pump out of the tank and lengthened the exsisting metal line with a compression fitting and 3/8 metal line. Now it purrs and runs alot better so far. thanks again all
Cool Glad you got it. I was really dreading going back into that 82 diagram.
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