mapper people

1. williamsvts Saxperience Post Whore Joined: Feb 2006 northumberland Posts: 7693 pulsar gtir, mk4 astra sxi

   #1 20th April 2009, 17:12

   does the ecu just use the crank for ignition timing?
   or crank + tps
   or crank + map
   or crank + tps + map sensors?
2. williamsvts Saxperience Post Whore Joined: Feb 2006 northumberland Posts: 7693 pulsar gtir, mk4 astra sxi

   #2 21st April 2009, 09:24

   anyone?
3. luthor1 Established Member Joined: Jan 2008 Posts: 1802

   #3 21st April 2009, 09:43

   I don't know what the stock ECU does, but my ECU uses the engine RPM and the MAP vacuum value to determin how much ignition advance to use. Also when the coolant it cold, there is a user-mappable addition of ignition timing to aid cold running, and when the AIR TEMP goes high we can map in a retard of ignition timing to prevent detonation.
   
   When mapping throttle bodies, the above applies, but TPS is used instead.
   
   Andy
4. williamsvts Saxperience Post Whore Joined: Feb 2006 northumberland Posts: 7693 pulsar gtir, mk4 astra sxi

   #4 21st April 2009, 10:26

   so what would you use with bike carbs that have a tps?
   crank and tps?
5. luthor1 Established Member Joined: Jan 2008 Posts: 1802

   #5 21st April 2009, 10:35

   Firstly, I'd *NEVER* use carbs.
   
   But if you have to for some reason, you could join together MAP vacuum pipes from each of the individual manifolds and use a MAP signal.
   
   Andy