Re: Increased MPG
i'm working with a guy to make one for his exterra (spelling). we'll see how it goes. if you have a wide band it should show rich appon intial introduction of the HHO, then the fuel trims should work to start leaning things out for you. if you have a scanner like hptuners like i have you could watch in real tim what th STFT (short term fuel trims) are doing then you would know for sure if it is working.
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