I installed a moroso 4 post cutoff switch and some new wiring and now my car wont shut off with key---the cutoff switch works and kills power to everything---just not the key. what would cause this, its getting feedback from somewhere
I suspect you don't have the alternator connected correctly to the switch. The output of the alternator needs to go to the input of the cutoff switch before it goes anywhere else. My guess is that you have a wire from the output of the alternator to a distribution point before it goes to the cutoff switch and that is what is keeping the engine running.
the output of the alt runs to the horn relay and across radiator support and then back to pos side of switch----the #2 terminal on the Alt plug for some reason runs all the way fom alt to inner fender and across firewall and then up to a terminal block on firewall. Im going to just run it to batt terminal on back of alt
The connection from the alternator to the horn relay is what is causing the engine to stay running. Like I said before the output of the alternator (red wire) needs to connect to the cutoff switch before anything else. The way you have it connected now is going to cause a load dump when you turn off the cutoff switch while the engine is running. A load dump will produce some pretty high voltages in the electrical system and may have damaged the ignition switch which might explain why it won't kill the engine when the key is switched off.
I will bypass the horn relay and go straight to the switch----the batt terminal on the alt has the output wire---power wire for electric fan and the #2 terminal wire now---I have a remote solenoid in the trunk also---I have a terminal block on the radiator support that has power from pos side of solenoid and msd wire is hooked to terminal block. Can the red wire going to horn relay be hooked to the terminal block on rad support and the power for the electric fan there also?
I will bypass the horn relay and go straight to the switch----the batt terminal on the alt has the output wire---power wire for electric fan and the #2 terminal wire now---I have a remote solenoid in the trunk also---I have a terminal block on the radiator support that has power from pos side of solenoid and msd wire is hooked to terminal block. Can the red wire going to horn relay be hooked to the terminal block on rad support and the power for the electric fan there also?
I'm not sure I fully understand what you are saying here but if the Pos side of the solenoid is hot at all times you seem to be feeding the MSD box battery voltage at all times as well. I'd move that MSD wire and see if the ignition switch will shut the car off then.
I'm going to assume you are talking about a remote starter solenoid. Does that mean you have a trunk mounted battery?
Yes, the horn relay and fan should be connected to the distribution point which is powered from the remote starter solenoid which gets its power from the output of the cutoff switch.
I have traced the the big red charge wire from back off alt---it goes down to harness and makes a loop and has a factory metal splice to another red wire---the original charge wire is cutoff---I removed the old voltage reg years ago and it said to cut and tape wire---the other red wire comes from horn relay and then thru that factory metal splice and then down and across the rad support to pass side
yes --battery in trunk----I have pos cable going to switch and then it goes to solenoid----I have the output from alt now going straight to switch and the other post is going to fuse box or should that hook straight to ignition switch?
It should go to the horn relay and power to the ignition switch is normally connected to the same terminal on the horn relay.
Jeff has a valid point. If you were previously powering msd from the starter solenoid it would still be powered all the time unless you meant it was connected to the start terminal in which case I would have expected the engine to die as soon as you released the key from the start position. Power to msd should come from the ignition switches ON terminal I think.
Perhaps now is a good time to draw out all the components as my picture of what you have keeps changing making it hard to follow what you're doing.
I can see what your saying---before I had the msd wire ran to the solenoid on starter and it would shut off----Lee might be right, maybe switch is bad?
The red wire output of the alternator should be connected to the input of the switch not the output. Then there needs to be a jumper wire across the outputs terminals of the cut off switch like what is shown in the instructions. One output terminal of cut off switch goes to the remote starter solenoid and the other terminal feeds all the other accessories so it would go to the horn relay which then goes to the ignition switch. Then the ignition switch ON terminal should connect to msd box. Hopefully that does it for ya.
my switch has 2 terminals with B on them and 2 with A on them---If you are standing in front and looking back at switch--pos cable is hooked to B and cable going to solenoid is coming off the other B-------Alt wire coming from Alt is hooked to A and the wire going to fuse box going to other A terminal----the jumper is hooked to both outputs---I cant get the pic to come up----This is very frustrating.
I forgot to add that I'm not sure how to connect terminals #1 and #2 from the alternator as I'm not sure what the function of these terminals are. Usually one of these terminals is the field terminal and the connection for that terminal should be connected from the output side of the cut off switch. The other terminal might be the sense terminal which should connect to the main distribution point. Or one of those 2 terminals could be for the alternator gauge in which case its connection doesn't change.
Not sure I know which pink wire your talking about? The big red wire on the msd box is going to the terminal block and the small red msd wire is going to the ignition fused spliced with the wire from switch----that might not be right?
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