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ECMlink Plx sm-afr dm6 02 narrowband prob

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cptncreme

Probationary Member
29
6
Feb 10, 2017
Austin, Texas
Ok car will not go closed loop. Have the plx wideband 0-5v output connected to front 02 wire of ecu. Narrowband sim sn and setup with pin assignments. Problem is that the front 02 just sits at .80 volts the whole time, never fluctuates up and down like it's supposed to. Have double and triple checked wiring, even tried hooking the narrowband analog 0-1v output and turning narrowband sim off, and still just sits at.80v. have it in the stock location on 02 housing to replace narrowband sensor. Car is a 91 Galant vr4 with a 1g 91-94 dsm harness and sensors and ecmlink v3 of course. Wideband kit is brand new
 
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