Crimestopper remote start won't sense tach signal when unit is cold

This is a common problem for remote start units that are installed utilizing the virtual tach (tachless) mode for RPM sensing. For the most part, it is a convenience for installation but it is not the most reliable. The only way to fix this is to have the tach wire of the remote start system connected.

This is a common problem for remote start units that are installed utilizing the Smart Start (tachless) mode for RPM sensing. For the most part, it is a convenience for installation but it is not the most reliable. The only way to fix this is to have the tach wire of the remote start system connected.

To program this remote-

1) Open hood or ground GREY wire @ pin #7 on 12 pin connector coming from Crimestopper control module usually located under dash.

2) Turn key to on position.

3) Press red programming button coming from module 4 times, after a few seconds the parking lights on vehicle should flash 4 times.

4) Press button #1 pause, #2 pause, #3 pause, #4 pause on the remote you are programming, the lights should flash after ever button push. After all four codes (buttons) are learned, the unit will exit code learning mode. If not, turn off key and close hood. Hope this helps......BUZZ

If your system is installed in the tachless configuration, you may experience starting problems in cold weather. For some vehicles, this configuration works fine but in others it can be problematic in the cold. The procedure you described is for tach learning. This procedure only works if the tach wire is connected and the module is programmed for tach sensing. You should have the shop that installed the system check and correct the problem.
If you are mechanically inclined and comfortable with working with the automotive electrical systems, you can attempt to make the connections and programming yourself.

The installation manual can be downloaded from here.
You want to connect the green/orange wire to the vehicle's tach source. You did not mention what year, make and model vehicle you have so I am not able to tell you what wire you need to interface. Once the connection is made, you will need to follow the procedure on page 4 of the manual for bank 3 option 5. You want to set it to tachometer input checking mode. See page 22 for the tach learning procedure, once the system learns the tach signal, your system should function properly.

The remote start has has a status option for it to know when the car has started and for it to keep it running. Most techs do it the lazy way and just set the option to voltage sense. You have to have a tech hook up the tach wire to the remote start and then program it for tach sense.

This engine is only the 4ZE1 2.6L EFI in the USA spec-models. The engine will run for a very long time with proper maintenance. Oil pressure falling only after warm-up indicates that the oil, when cold, is thick enough to make the pressure sending unit sense the oil. When it heats up the sending unit may not detect it as the oil thins out. The sending unit is what makes the gauge give an indicator its signal.

I would check the sending unit first, as your concern does not indicate a clattering engine or other problem. This model engine has a circuit that shorts the ignition to ground and kills the engine if the oil pressure ACTUALLY falls below a set minimum. Indicators of this problem are a loud clattering in the engine, as well an engine that will start and then stall for no reason.

Good luck!

There is some sort of a feedback to tell the starter if the unit is running - make sure you have the 'tach feedback' connected. There are settings for it to run the starter for specific length of time, or for it to know that it started by the tach feedback. Check your users' manual.

if the battery keeps dying on your remote it probably has a bad contact somewhere inside you could order a new one from www.crimestopper.com you would have to have your unit model number for them to help you that is located on the unit under your dash

Kinda sounds like the ECM or "start mixture" control module is faulty or is getting a bad input from a sensor. For example, it man not be getting a proper temperature sense from the exhaust manifold or the intake manifold water temp sensor. So, every start seems like a cold start....

If your cold start is on a "cold" engine - fine. If your cold start is on a "warm" engine - problem. Mixture is too rich for a warm engine.

Again, could be sensor sending a bad temp signal... or the control module not responding to the signal.

A bit too complicated a problem to exactly troubleshoot via long distance... but you now have a starting point.... -Jim

IF ENGINE CRANKS BUT NOT START -, sounds like a short in the tach wire, plug remote starter in and cut the tach wire to the engine for the remote starter. if the truck starts then you remote starter module is faulty.

IF ENGINE WON'T KRANK -, then there is a starter kill hooked in with it. if you bypass this you should be fine. just follow yellow wire from ignition switch till you find where it is cut. rejoin these two yellow wires and you should be good to go