above,and also.
we dont have 57b 's here just 58's
but our 58Bs all hate EGR removed, it will run like crap here with that removed.
the ECU AFR maps are tuned for the EGR working, remove it and all the tuning is wrong.
seriously wrong. (in effect your are substituting air for exhaust gas and that greatly changes the AFR)
the evap tube that went to the evap VSV must be plugged not unplugged,or it will suck air and the same goes for all VSV you unplugged. the source vac , must be plugged solid. (sorry if that is obvious)
the 57B european ECU might well have very strick operations for the EGR.
I;d put it back (EGR), if it runs better on the low end your good.
dont for get to torque it to the new spec, 94 ft/lbs , all manuals are wrong on this.
FSM , Haynes, Chiltions, etc, I have the TSB if you want it , stating this fact.
funny how no one ever seems to torque it with the flywheel locked.
and there is a new Loctite just for crank key ways.
need number , hollar.
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