Quote:
Originally Posted by Old Mechanic
Post 5
"i don't know"
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huh? maybe you have wrong post? i didnt say that in post 5?
[/QUOTE]My understanding is at low RPM one intake valve opens normally, the other barely opens. The combination creates a swirl which enhances atomization and allowslean burn at lower revs. VTEC enagages at 2500 RPM to allow more power when needed. Lean burn engages at higher manifold vacuum. This allows mixtures to be very lean but it is a very sensitive area as far as loads, throttle position, as well as any other condition such as clogged egr ports, ignition problems, even dragging brakes, all acting together to push the car out of lean burn. Even tire choice can affect lean burn operation. When I changed the ORIGINAL tires on my 94 VX in 2008 at 37 k ORIGINAL miles the averge MPG dropped by 7 MPG, just from the tires.[/QUOTE]
ok maybe i am hung up on the fact that when vx motor goes into L/B you feel a slight loss in power similar to when the a/c kicks on and the shift light comes on is this when the motor switches off the solenoid stopping oil to the 4th valve and goes to 12v mode? to me i feel this so i think this is how it operates. this is why i believe if your not in L/B then the motor is in 16v mode.[/QUOTE]
[/QUOTE]An argumentive position and responses is not condusive to "learning" and you have access to some of the most knowledgeable VX owners and techs on the planet right here.
The only way you can fail to learn is to not believe the truth when it is staring you in the face and that is your choice. [/QUOTE]
it just doesnt add up by the way the vx runs and drives as to how people are describing the vtec-e operation. sorry guys its just the way i see it and i will keep asking till i find the answer that makes sense to me. i am reading the fuelly forum now to see what they say from the post that was posted earlier -http://www.fuelly.com/forums/showthread.php?t=3567&highlight=Lean+Burn+Monitor+ Info