|
I ask this first question not to be obnoxious but because I don't know you and the car is very old but new to you and your previous car was not a VX: are you sure you have the complete VX engine, with the VX cams (not EX) and the VX transmission? Dudes swap these parts on VXs sometimes. Intake manifold?
What driving conditions are you in? The VX shines in freeway crusing, but its super tall grearing is not necessarily better than your fifth gen DX in the city.
How did you check the timing? And did you jump the ECU first?
Have felt Lean Burn kick in? I have never felt it, but guys who own the lean burn civics sometimes say they can feel it.
Is a check engine light on for any reason? (It would block lean burn.)
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
|