hi guys/girls, im hoping someone here has installed a remote start or has had a similar issue to mine. first ill give some background info:
the remote start is a viper 5701.
the regular alarm and door unlock/lock part of the alarm works fine. when it comes to the remote start, ive bypassed the VATS system at the Theft deterent module behind the glove box. i used a 4 wire bypass from http://www.xdponline.com/index.php?main ... 8f5b90c20f --this seems to be working right as the car will still crank and stay running even with TDM disconnected.

the wires i used for the remote start are
h3/1 -- (+) IGNITION 1 INPUT/OUTPUT -- connected to PINK at the ignition switch
h3/3 -- ACCESSORY OUTPUT -- connected to ORANGE at ignition switch
h3/4 -- (+) STARTER OUTPUT (CAR SIDE OF THE STARTER KILL WIRE) -- connected to yellow
h3/5 -- (+) STARTER INPUT (KEY SIDE OF THE STARTER KILL WIRE) -- connected to yellow
h3/6 -- (+) FUSED (30A) IGNITION 1 INPUT -- connected to RED at ignition switch
h3/9 -- FUSED (30A) ACCESSORY/STARTER INPUT -- connected to RED at ignition switch

i also connected the brake light wire to the blue wire at the brake switch, the neutral safety switch is grounded to the black ground wire of the alarm h1/5 harness. i didnt connect the hood pin or tach wire as i thought they wouldn't be immediately necessary to get the system working. the factory alarm disarm wire is connected to the light green wire at the drivers kick panel.

i think those are the most basic necessary connections needed to get the remote start working as well as the on/off switch and setting the system to auto transmission mode.

my problem is that the remote start will start the car, but then it will randomly shut down by itself, there will be about a 3 second pause and it will restart itself. this process will continue until i press the remote start button again to turn it off. there is also no set amount of time before it will shut down and restart itself. it can shutdown a couple seconds after it starts or it can shut down 5 mins after its been running. so the interval between running and shutting down is not consistent. but it never reaches the default 12min shut down timer.

the remote start itself seems to work properly; stepping on the break shuts it down and i can even drive the car press RS button and take the key out and it will keep running.

any ideas why it is randomly shutting down?

OK, you say you did not hook up the tach wire? I'm in no way a expert in this area, and only installed one remote start which didn't go well. But I seem to remember the tach wire was needed so the remote starter knows the engine is running. With no signal it thinks the engine did not start and will retry.

it depends on the alarm, some have tachless operation and most have a programing option to run it that way or not, sometimes you have to hook it up to get it to run properly thats why they give you the option

the alarm is set to use the virtual tach so i didnt connect the tach wire. ill go connect it and see if it works better with it connected. also, should i completely remove the TDM after i bypass it or should i leave it connected? right now its connected, but i know the car still starts with it removed.

you wouldnt think it would matter either way

im having trouble finding the tach signal wire at the pcm. the factory service manual shows a white ignition control wire going to an 8 way ignition harness. and that connector is supposed to have a white tach signal wire. am i suppose to tap into the ignition control wire, or where can i find the 8 way harness connector? any help is much appreciated.

Do you have a kill switch wired in to the brake petal or something? Most are set up so if you hit the brake to shift gears the module shuts off thus shutting the car off if the key was not it. If that malfunctions it could cause this.

I think Tommy is in the right area, it sounds like a safety feather is kicking in.

the only safety feature i have wired up is the brake switch wire. so when i step on the breaks it shuts down like it should, as long as the key is not in the cylinder. i havent dont the hood pin yet so i think it should just think the hood is closed, right?

I don't think so, as a safety feature I would expect it to think the hood is open. Open circuit, pin down, closed circuit. But I would also expect that to not crank at all.