LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Air/Fuel ratio gauge

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Old May 19, 2003 | 12:32 PM
  #1  
'94 Bad A Z28's Avatar
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From: Orlando,Fl
Air/Fuel ratio gauge

What's the easiest way to hook one up?


I know you can hook it up at the PCM, but I don't know what wires. Does anyone have a diagram for all the wires on our PCM's?
Old May 19, 2003 | 12:35 PM
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Pick the right or left sensor wire, pins C8 and C20, one is purple, the other is purple/white. Or, run both wires to a single pole-double throw switch, and be able to switch to either side.

Just curious... how much useful data do you feel you will get from an A/F ratio gauge, that is normally going to be flashing all over the place, and will simply go into an uncalibrated field called "rich" when you go WOT?
Old May 19, 2003 | 12:40 PM
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'94 Bad A Z28's Avatar
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I just need to know what's going on with it because I just put a NX kit on... and it's kinda detenating up around 4000 RPM's when on the bottle.
Old May 20, 2003 | 03:50 PM
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bout all i get is some lights to look at. it really isn't helpful at all. like injuneer said it just kinda bounces around
Old May 20, 2003 | 04:38 PM
  #5  
94FlamdS10Blazr's Avatar
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From: Slidell la
it can kinda tell you if your rick when spraying and thats about it other than annoying the hell outta you when your driving. Mine is way down on the bottom of the pillar
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