Question about 1986 Chevrolet Camaro
Failed emissions test in new jersey for hydrocarbons and carbon monoxide.Readings were hc-203, allowable 162. co 4.4, allowable 0.91. In addition the nitrous oxide passed test but seems to be very low .allowable -1227 actual reading 59. Is this a strong indication that the oxygen senser is not functioning and should be replaced? Could ignition timing contribute to this problem?
High hydrocarbons indicates head gasket(1 or both) leaking , carbon monoxide is a worn out catylitic convertor which both could lead to the oxy sensor getting a false reading
Posted on Oct 28, 2008
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