wayne fajkus wrote:
If it allowed a more complete burn, wouldnt the computer just add more gas to keep it rich? The more the tech succeeds, the more the computer fights to correct it. It seems that a tuner is in order to make it work. If a tuner is used, it nullifies the need since its doing the same thing. Making a leaner fuel mixture. So now your gain would not be the difference between stock and the gadget(tech), but the difference between a tuner and the gadget(tech)
Yes, unfortunately this is the case with many vehicles but, you still come out ahead a bit in spite of that. The computer is definitely preventing the full potential.
Honda vehicles are typically known to not show economy gains except, when you use an additional $50 device called a MAPster. This sends a less erratic signal to the computer which the Map sensor sees.
Since the groove creates a more extreme wave form than usual, some computers will not tolerate it. With the MAPster you get to keep your waveform, lie to the computer and get away with it.
It works, I have one. The only gripe I have is, my ECU will only tolerate a (-16) Long Term Fuel Trim, as soon as it goes to (-17) I get a lean fuel error code P0173. So I'm rather limited in my mpg gains.
I'm not interested in investing in an expensive EFIE device.
Regardless of whether you get mpg gains or not, you always get all the other benefits:
-more responsive & smooth engine
-cooler plenum temp.
-better braking power
-longer oil life