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WildBillyT · 12-30-2011, 09:08 AM

http://www.njfboa.org/WBT/run2.uni

When the EGR valve gets activity you go pretty lean shortly after and the knock retard comes in. I'd look at the EGR valve as well.

12-30-2011, 09:08 AM	#32
WildBillyT Ayatollah of Rock N Rolla / Admin Join Date: Mar 2006 Location: Parts Unknown Posts: 12,573 iTrader: (10)	http://www.njfboa.org/WBT/run2.uni When the EGR valve gets activity you go pretty lean shortly after and the knock retard comes in. I'd look at the EGR valve as well. __________________ -Bill '68 Nova SS: Vortec 350 6 spd 4.11 9" DSE 4wdisc