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SPFI running like crap


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My SPFI wagon has had a issue for a month now

 

Symptons:

  • running like crap
  • down on power
  • wont idle without some throttle
  • super rich, can smell unburnt fuel

 

Things done

  • checked tps ohm and idle switch
  • checked CTS ohm
  • replaced cap, rotor and plugs
  • air/fuel filters good
  • fuel pressure good
  • IAC works correctly when tested.
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wasn't it this era that relied quite heavy on the input of the oxygen sensor? What does the injector spray look like ? Can you see it looking into the throttle body ?

I might be in Australia, but I have had one of the spfi manifolds, and have feint memory of it.

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