Has it been done before? If not, has anyone thought about it? I think that it would be bad ***. Now don't get me wrong. The push button start is freaking awesome, but if you have to put your key in and turn it then why not do the Intelligent key?

 

Ummmm, because that's not the way the ECU and security systems work.

 

maybe you can design a system for us

 

Read this...
https://my350z.com/forum/audio-and-v...ton-start.html

It's a good example of what you have to go through to get the Z to accept something is wasn't designed for - push button starting.

 

The ultimate downside to a pushbutton start system that doesn't require the key is security.

The OEM system is integrated in to the ECU - if the correct fob isn't present the motor gets no fuel. There is no way (for liability reasons) an aftermarket system will ever have that level of security. On top of that, the two forms of security that you have now - a mechanical steering wheel lock and a passive transponder system will both have to be bypassed to allow keyless operation.

So, with a "true keyless" pushbutton system you are already starting behind the OEMs with a lack of overall security, but you MUST take it a step further and disable / bypass the other forms of security you have!

What this means, at the end of the day, is that if someone gains entry in to your car (which is easy to do with any Nissan after about 1998) they will be able to hotwire your car and drive off with it by exploiting the pushbutton start system. There are systems on the market that talk about super secure RFID protocols, but that security is only if you are using the pushbutton itself, it doesn't help at all for someone trying to hotwire the vehicle.

The last thing to keep in mind is that the OEMs have a failsafe mode built in to them incase your fob quits working. The only way to do a proper failsafe in an aftermarket system is to rely on the key so you would pretty much have to leave your key in place, but still bypass the mechanical steering wheel lock.

My G35 is setup to work with the KPtechnologies PB50 (pushbutton start module) with no key in the ignition. Luckily, my car is garage kept and rarely driven (20K miles on my '04). I could have it hotwired and moving in less then 60 seconds with my current setup!

With all that being said, we are still trying to develop a completely keyless system for those who understand the risks involved and can find someone to install the system. I should have an update hopefully later today in the direction of the project.