Lambda voltage / wiring / signal

1. sri_130 Frequent Poster Joined: Apr 2012 Doyncaster Posts: 783

   #1 10th July 2018, 23:35

   I need to output my wideband to the ECU.
   
   The lambda plug has 4 wires. 2 x white (heater), 1 x black (signal) and 1 x grey (ground).
   
   What voltage or output should I use from the wideband? There are two options:
   
   Analog output one is 0V =7.35 AFR and 5V = 22.39 AFR.
   Analog output two is 1.1V = 14 AFR and .1V = 15 AFR.
   
   I'd think it would be output 1?
2. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

   #2 11th July 2018, 13:56

   which ecu? if its oem then you can only use the 0-1v input, any mappable ecu uses the 0-5v scale
3. sri_130 Frequent Poster Joined: Apr 2012 Doyncaster Posts: 783

   #3 11th July 2018, 15:27

   Quote:

   Originally Posted by welshpug which ecu? if its oem then you can only use the 0-1v input, any mappable ecu uses the 0-5v scale

   Yes it's the stock Magnetti 3 plug. So output 2 then?
4. Chipwizards Frequent Poster Joined: Nov 2009 Posts: 576

   #4 11th July 2018, 20:09

   Output 2

   1 user thanked this post: sri_130
5. sri_130 Frequent Poster Joined: Apr 2012 Doyncaster Posts: 783

   #5 11th July 2018, 22:15

   Quote:

   Originally Posted by Chipwizards Output 2

   Legend