Hi everyone I have a Viper 5900 installed on my 2001 GMC Sonoma. Passlock was bypassed with a DEI 556l, and the tach wire is connected.
The remote start has always worked perfectly and started the car on the first attempt. Now the remote start rarely ever manages to start on the first attempt.
The car will crank for nearly half a second, the alarm resets, then on the second attempt it starts with no problems. Occasionally it will also start on the first attempt, but more often than not it takes the second try for thigns to work as they should.
I've tried relearning the tach signal, and it works with no problem. Reving the car will turn off the remote start once it reaches ~2500rpm.
I've also relearned the bypass module, and haven't had a problem with that either.
I've tried remote starting with the key in the ignition (off position) and it still won't start until the second attempt.
I've tried with the key in the on position, and it still won't start until the second attempt.
Any ideas what to check for? I'm going crazy hearing that awful starter grinding noise when it doesn't start on the first attempt like it used to!
Excuse the double post, I did some more looking into it. I thought long and hard about what has been changed since the alarm has started with this problem and the only thing I could think of was me adding another battery. I went through and redid the wiring the way it was before and... found the problem.
I have 0 gauge wiring running from the alternator inside to two batteries. With the 0 gauge wire connected straight to the battery the remote start works flawlessly.
With the 0 gauge wire connected to a ANL fuseholder fitted with a 300AMP ANL fuse and short length of 4 gauge wire going to the two batteries the remote start hesitates and fails the first try, only starting on the second.
I don't understand how this could even cause the problem. Any ideas? I know I could connect the 0 gauge straight to the battery and have it work flawlessly, but I really want to keep that ANL fuse in the line for safety. The thought of it shorting scares me!
Are you using the tach setting or the voltage setting, i know u said you had the tach wire connected but are u using it?
I'm 99% sure the unit is set to tach sensing. I've never once changed it to voltage sensing, and I'm also sure that it is set to tach as default. Any ideas as to why the remote start would never start on the first attempt?
First I'll describe the wiring set up. It goes from:
alternator -> 0awg -> 0awg in 2 4awg out ANL fuse holder with a 300amp fuse -> 4 gauge to the two batteries.
I did some troubleshooting on it, and found that the remote start would start the first attempt with the 0awg from the alternator directly touching the + battery post. With the 0 awg touch the output of the anl fuse holder the remote start would start the second attempt. With the 0aw connected to the inlet of the ANL fuse holder it would start the second attempt also.
I changed the wiring so it goes 0awg -> ANL fuse equipped with two 250 amp ANL fuses and 4 awg going from 1 output to 1 battery, and the other output to the other battery.
I'm thinking when the remote start attempts to start it would just draw so much through the 4awg that it would give up on the first attempt. Is that possible? It doesn't seem like a 18" piece of 4 awg would affect things that much though.
Well if we were to look at it logically, that wiring should have no effect on the starter, since you are using tach mode, however the environment in vehicles can differ, so, here's where to start, check your menu and verify that you are indeed using tach mode, if you are, then program the engine checking off and see what happens, or you can try voltage mode and see what happens, if you do use voltage program the unit for low voltage checking instead of the default high.