Originally Posted by Whiterabbitt
Done it before
Most reliable way in my opinion, is to route the clutch sensor through the shifter via reed switch. Iíll explain.
Your car starter motor wonít work because it is interlocked to the clutch. You can ground out the clutch and the remote start will work normal. But thatís a bad idea IMO because you have to remember to keep the car in neutral, and also you can start the car in gear with the key too. Itís just a bad idea all around.
So what you can do is ground out the clutch through a reed switch that is active only when the car is in neutral. You do that by installing the reed switch in the center console next to the shift lever, and epoxying the magnet to the rod of the shifter. Tune it until the switch is met in neutral, but not in first or reverse.
For the wiring, you ground one end of the wire locally, then route the other wire to the clutch sensor and tap it in to the right wire.
The net result is that the car doesnít know the difference between a depressed clutch, or the car in neutral. Either case, the car will start. Key or remote.
More importantly, when the car is in gear, then the clutch sensor will prevent the car starting, key or remote.
There are other ways to do it I am sure, but none as elegant, simple, and safe as this way. If there is, I havenít heard of it yet...
This is a super smooth end result for sure. It takes a little more elbow grease than a "plug-n-play" factory solution, but it also functions much more usefully in the real world. This is definitely the way I would go if I never needed it again!
My last manual gearbox car had remote start that was installed by a local installer, and they followed all the instructions without variation. It was a standard solution that was "safe", but resulted in a remote start that was barely more effective than the Mercedes Me remote start.
There were several conditions that had to be met to "enable" the system, (Had to exit the vehicle with it running, in neutral, parking brake on, etc. and do it in an exact order of operations.) and pretty much anything you did would disable the system. The biggest hassle was, when the system is enabled, and you open ANY door on the vehicle, the system was cancelled. For example, you forget something in the car and go back to retrieve it. You've just cancelled the remote start ability unless you get back in and repeat the entire enabling sequence. You also had to exit the vehicle with it running in neutral, which was weird because you turn off the key and remove it but the car keeps running until you exit and shut the door. People unfamiliar with this (which would be pretty much everyone) were very panicked that the car did not shut off (if I forgot to tell them about it).
I ended up cutting all those door switches so that only the driver's door would cancel the system. It created a potentially unsafe condition, but it was a risk I was willing to accept just to make the remote start useful. It made a world of difference for me, and nothing bad ever resulted from that unsafe modification.
If you could find an installer with the mad skillz that Whiterabbitt has described, you'll be MUCH more happy. I wish I had that knowledge when I needed it!
Thanks for sharing Whiterabbitt!!!