So I took my 86 Capri to get inspected and failed for low idle emissions this has been very aggravating trying to diagnose the issue it runs fine idles fine and has clean spark plugs but it's running rich I ordered a full exhaust headers and all .......new O2 sensors new temp sensor new air charge sensor what else could cause this issue my Hc ppm is in the 700s when in New Jersey it has to be under 220 it normal idle at high idle I passed with flying colors and everything else passed please someone help