http://www.honda-acura.net/forums/accord/207444-4cyl-f23a1-or-f23a4.html
Post #2
F23A1 -- standard Vtec sohc (EX/LX)
F23A4 -- ULEV Vtec
F23A5 -- non -Vtec 135hp DX sedan engine (some VP models too)
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http://www.honda-acura.net/forums/accord/207444-4cyl-f23a1-or-f23a4.html
Post #2
F23A1 -- standard Vtec sohc (EX/LX) AND SE
F23A4 -- ULEV Vtec
F23A5 -- non -Vtec 135hp DX sedan engine (some VP models too)
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