Vic
VCA Venom Member
- Joined
- Nov 12, 2000
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Re: 1984 RT/10 cutting out
(1994?)
I'd say that definitely is a very likely possibility. I don't know for sure on a Viper, but if its like other cars, then you have two hot wires on the ignition that get disabaled by the alarm system. One wire from the switch only gets hot when you turn the key to "start". That wire brings in the starter solenoid to crank the engine over.
Then there is one, or sometimes two more wires, that only get hot when you turn the key to the "run", or "on" position. These (one-or-two) wires are also disabled by the alarm system, and can be run through some relay contacts in the alarm box itself. If the relay bounces around, the contacts may momentarily open up, dropping the heat to the ignition/PCM. Does the problem exhibit itself when going over bumps, or at higher speeds? Does it seem like its related to vibration, like when you are going over railroad tracks?
If I was in your situation, I would try to get an electrical manual, (I don't think they cost a fortune), find the color codes for the wires mentioned above that get interupted by the alarm when the key switch is in the on position, and just jump around the alarm box entirely, and see if it is the culprit. You can take some wire strippers, don't cut the wire, just slit the insulation enough so you can pull the insulation back, exposing the copper core, then put your jumper on it there. Later, you can push the insulation back together, tape it up, and put wire ties on the tape.
Or you could bring it to someone, if you got the bucks.
-barn yard mechanic
(1994?)
I'd say that definitely is a very likely possibility. I don't know for sure on a Viper, but if its like other cars, then you have two hot wires on the ignition that get disabaled by the alarm system. One wire from the switch only gets hot when you turn the key to "start". That wire brings in the starter solenoid to crank the engine over.
Then there is one, or sometimes two more wires, that only get hot when you turn the key to the "run", or "on" position. These (one-or-two) wires are also disabled by the alarm system, and can be run through some relay contacts in the alarm box itself. If the relay bounces around, the contacts may momentarily open up, dropping the heat to the ignition/PCM. Does the problem exhibit itself when going over bumps, or at higher speeds? Does it seem like its related to vibration, like when you are going over railroad tracks?
If I was in your situation, I would try to get an electrical manual, (I don't think they cost a fortune), find the color codes for the wires mentioned above that get interupted by the alarm when the key switch is in the on position, and just jump around the alarm box entirely, and see if it is the culprit. You can take some wire strippers, don't cut the wire, just slit the insulation enough so you can pull the insulation back, exposing the copper core, then put your jumper on it there. Later, you can push the insulation back together, tape it up, and put wire ties on the tape.
Or you could bring it to someone, if you got the bucks.
-barn yard mechanic
