Join Date: Mar 2010
Location: Stoney Creek, Ontario
Haynes may call it an idle air by-pass valve but it's located on the throttle body and the oil pressure sender is located on the left rear side of the cylinder head, probably down behind the egr unit. Check your engine to cab/chassis ground wire first though. That might be the cause of both problems.
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The Past - 1976 F-350 Crew Cab 1992 - 2006 RIP
The Past - 1995 F-150 XL Enforcer All Gear Drive 2008 - 2015
The Present - 1993 F-250 XLT Turbo Diesel Super Cab 4x4 2015 - ?
The Future - Who knows?