Hello gentlemen, This vehicle failed 2 speed idle for hc at idle only. I dont have the exact specs with me. IDLE HC = 220, co = .5, co2 = 9, o2 = 7. At 2500 HC = 10. I put my vantage on wires. All all show misfires. The read out shows a steady firing kv of aro... Login to read more.