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Aporte original por: Andrew ,


My 1992 caprice is having trouble passing California smog check


My 1992 caprice is having a hard time passing California smog check before I took it in I had replaced spark plugs and wires oxygen sensor throttle position sensor coolant temp sensor map sensor  air idle control  valve and it failed there was a check lite on it only comes on now when I run it hard  or on highway after car has been running it seams like its guna Die but sometimes will spudder and almost die but will kick in after a few  seconds then I had timing checked it's dead on 0 zero so I'm at a lose her can you help the converter looks and seams ok that's like the only thing I haven't replaced


1991-1996 Chevrolet Caprice