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**richard2717** · 08-11-2021, 06:53 AM

My van is at it again. It will throw code po430 after about 50 miles of driving and kick the check engine light on a short time after that the light will start flashing when it kicks the code for random misfire and will continue to flash in longer cycles. I have not noticed any reduction in power or rough idle. Only thing I have noticed is that my fuel mileage has dropped from 11 to 9 mpg.

Motor is a 6.0 and auto. Issue started right after I had the AC recharged and used it the 1st time. I have not used it since just trying to figure this out 1st.

I took it to a local shop the other day and they said I would need to take to dealer to figure it out. I suspect they just did not want to work on it.

Any ideas before I end up at the dealer?

Thanks
Richard

08-11-2021, 06:53 AM	#1
richard2717 Equal opportunity joke ofender Join Date: Oct 2011 Location: Eastern Shore of MD Posts: 9,908	06 chevy express codes My van is at it again. It will throw code po430 after about 50 miles of driving and kick the check engine light on a short time after that the light will start flashing when it kicks the code for random misfire and will continue to flash in longer cycles. I have not noticed any reduction in power or rough idle. Only thing I have noticed is that my fuel mileage has dropped from 11 to 9 mpg. Motor is a 6.0 and auto. Issue started right after I had the AC recharged and used it the 1st time. I have not used it since just trying to figure this out 1st. I took it to a local shop the other day and they said I would need to take to dealer to figure it out. I suspect they just did not want to work on it. Any ideas before I end up at the dealer? Thanks Richard __________________ Members I have met. Dually Jams, OlBlue60, ScottH, Tommyboy24, Dujobo, Warbucket, 2003 Silverado, Notsolo, my90k5, 6t727t2, Special-K ,Jack_71C10, tabarcus,72blazer_mud_bogger,pwdcougar,RSavage,EricSean,1Rippen6,invicta455,tennaragtop71,arks, Kendal,Bennett68C10, Perpendicular, Chainsawman, McGeesCustomMinis,ShortbedClayton,longblue72,6768chevylover,Tim71,Travisarmenta,Ol' Drippy,fleetmitch,georgieb51,Dave,bcnya2,Dadsburb https://paypal.me/6772GMtruckparts Most women like the strong, silent type… Fortunately for me, my wife prefers the out-of-shape, mouthy type.