EGO sensors

[Todd King]

  <<<   >Put one(HEGO) after a turbo or at the collector of a header
  > and you will likely have problems at idle and low rpm light load >running.
  
  Anyone else seen factory setups with the HEGOs upstream of the turbine?
  - --
  Ed Hernandez
  Ford Motor Company
  ehernan3 at ed8719.pto.ford.com   >>>
  
  The turbo Buicks have the EGO sensor just before the turbine. The stock
  ('86-'87) sensor is unheated and seems to work OK; interesting that when
  Hooker headers are installed the sensor begins to "code", even though
  it is in about the same location. Usual practice w/ the headers (which
  seem to hurt performance, BTW) is to use a heated replacement sensor.
  These can be had for about $25 from the General these days.
  
  Todd          Todd_King at ccm.co.intel.com