Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-19-2017, 04:43 PM   #1 (permalink)
EcoModding Lurker
 
Join Date: Nov 2008
Location: London UK
Posts: 87
Thanks: 3
Thanked 7 Times in 4 Posts
Kill switch and engine start button wiring

Hi all

I am planning on installing an engine kill / engine start button arrangement on my 2003 C220 CDI Manual.

The engine start button is easy, just wire it into the starter relay.

The engine kill button is a bit more difficult. I am planning on using a normally closed switch into one of the wires on the CAM position sensor.

If I unplug the cam sensor, the engine stops, but I have to cycle the key for the engine to start again.

any ideas which wire I can tap into to simulate a 0 RPM signal?

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-19-2017, 05:30 PM   #2 (permalink)
Eco Sol
 
Shortie771's Avatar
 
Join Date: May 2009
Location: Paradise, TX
Posts: 335

Scarlet - '94 Honda Del Sol Si
90 day: 39.15 mpg (US)
Thanks: 23
Thanked 83 Times in 47 Posts
Why not kill the engine at the injectors? That's what I did. I wired my switch to the under-hood injector fuse. So when I flip the switch, it's pretty much the same as if I had taken the fuse out.
__________________



Best Tank = 42.72 mpg

Current Mods:
Mudflap Delete, Fully Synthetic Oil, Max Sidewall PSI, Warm Air Intake, EOC Kill Switch, MPGuino, Lowered 1", Vacuum Gauge.
  Reply With Quote
Old 04-19-2017, 05:33 PM   #3 (permalink)
EcoModding Lurker
 
Join Date: Nov 2008
Location: London UK
Posts: 87
Thanks: 3
Thanked 7 Times in 4 Posts
Quote:
Originally Posted by Shortie771 View Post
Why not kill the engine at the injectors? That's what I did. I wired my switch to the under-hood injector fuse.
The common rail injectors have sizeable power feeds. I would have to use a relay and it also logs a EPC fault code which fills the screen on the dash.
  Reply With Quote
Old 04-19-2017, 05:34 PM   #4 (permalink)
Eco Sol
 
Shortie771's Avatar
 
Join Date: May 2009
Location: Paradise, TX
Posts: 335

Scarlet - '94 Honda Del Sol Si
90 day: 39.15 mpg (US)
Thanks: 23
Thanked 83 Times in 47 Posts
Well darn. I guess I had it easy since I'm OBD-1... Back when things were lower tech
__________________



Best Tank = 42.72 mpg

Current Mods:
Mudflap Delete, Fully Synthetic Oil, Max Sidewall PSI, Warm Air Intake, EOC Kill Switch, MPGuino, Lowered 1", Vacuum Gauge.
  Reply With Quote
Old 04-19-2017, 05:35 PM   #5 (permalink)
EcoModding Lurker
 
Join Date: Nov 2008
Location: London UK
Posts: 87
Thanks: 3
Thanked 7 Times in 4 Posts
Quote:
Originally Posted by Shortie771 View Post
Well darn. I guess I had it easy since I'm OBD-1... Back when things were lower tech
It is noticeably more difficult than my other cars.

EOC on motorbikes is traditionally easy, just hit the kill switch. My bike has a DCT gearbox that wont go into gear until its stopped! Argh
  Reply With Quote
Old 04-19-2017, 05:38 PM   #6 (permalink)
Eco Sol
 
Shortie771's Avatar
 
Join Date: May 2009
Location: Paradise, TX
Posts: 335

Scarlet - '94 Honda Del Sol Si
90 day: 39.15 mpg (US)
Thanks: 23
Thanked 83 Times in 47 Posts
That seems like a lot more trouble. Sadly I think you're out of my realm of knowledge. I'm sure somebody (smarter than myself) here can offer you a solution.
__________________



Best Tank = 42.72 mpg

Current Mods:
Mudflap Delete, Fully Synthetic Oil, Max Sidewall PSI, Warm Air Intake, EOC Kill Switch, MPGuino, Lowered 1", Vacuum Gauge.
  Reply With Quote
Old 04-21-2017, 03:44 AM   #7 (permalink)
EcoModding Apprentice
 
Join Date: Jan 2014
Location: Antwerp (Belgium)
Posts: 221

SUVcruiser - '07 Ssangyong Kyron 2.0 XDI
Diesel
90 day: 45.1 mpg (US)

SUVcruiser year 2017 - '07 Ssangyong Kyron 2.0XDI
90 day: 45.1 mpg (US)
Thanks: 9
Thanked 47 Times in 42 Posts
I bump start my engine. But i need a kill switch. Cycling the key is not good for wear. And when dark. The lights go out until i switch the key back to on...
__________________
Drive smart, save fuel, save money, spare the enviroment

But keep having fun!
I can drift



Est. 2011: + 10l/100km
Est. 2012: + 8l/100km
Fuel use 2013: 6,894l/100km Tg: + 7l/100km
Fuel use 2014: 6,165l/100km Tg: + 6,3l/100km
Fuel use 2015: 5,885l/100km Tg: + 5,9l/100km
Fuel use 2016: 5,843l/100km Tg: + 5,75l/100km
Without holiday: 5,759l/100km
Tg 2017: + 5,6l/100km
Tg 2018: + 5,5l/100km
EPA Rated average: 8,1l/100km
  Reply With Quote
Old 04-21-2017, 08:38 AM   #8 (permalink)
EcoModding Lurker
 
Join Date: Nov 2008
Location: London UK
Posts: 87
Thanks: 3
Thanked 7 Times in 4 Posts
After some testing, the only way to kill the engine is by cutting the CPS signal so that the ECU thinks the engine has stopped.

Any other method (removing the injector connector, rail pressure sensor etc) causes the ecu to need a key off/on again before it will allow the engine to start.

Will put a pic up soon of the switch arrangnment.

Last edited by alexander.foti; 04-22-2017 at 04:59 PM..
  Reply With Quote
Old 04-21-2017, 09:27 AM   #9 (permalink)
Eco Sol
 
Shortie771's Avatar
 
Join Date: May 2009
Location: Paradise, TX
Posts: 335

Scarlet - '94 Honda Del Sol Si
90 day: 39.15 mpg (US)
Thanks: 23
Thanked 83 Times in 47 Posts
I'm guessing a fuel pump cut or ignition kill switch wouldn't cut it?
__________________



Best Tank = 42.72 mpg

Current Mods:
Mudflap Delete, Fully Synthetic Oil, Max Sidewall PSI, Warm Air Intake, EOC Kill Switch, MPGuino, Lowered 1", Vacuum Gauge.
  Reply With Quote
Old 04-21-2017, 09:28 AM   #10 (permalink)
EcoModding Lurker
 
Join Date: Nov 2008
Location: London UK
Posts: 87
Thanks: 3
Thanked 7 Times in 4 Posts
As its a common rail diesel, there is no electrical fuel pump or ignition system.

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com