97' K1500 no foull plug adapter to corect cat problem

Discussion in 'General Chevy & GM Tech Questions' started by dsquared, Jun 14, 2011.

  1. dsquared

    dsquared Member

    Has anybody tried adding the no foul spark plug adapters on the rear O2 sensor to make the ECM think a weak cat is working properly? If so which ones did you use?
     

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