afr alteration

[AppleSauseSi]

Like everyone else I’m pissed off at the extremely high gas prices. I live in the country so I do a lot of straight cruising, I was wondering if there was a way to reduce the amount of fuel in the air fuel ration with some sort of resistor. Or maybe a dial that would send the ECU a signal telling it there’s not much air entering the engine. I know there’s a thing on ebay that tells the ECU the engine is getting a whole lot of air so it messes with the air fuel ratio; I want something opposite of that. It would need to be on a switch or dial because you would want power at times, and acceleration or what not. The whole idea would be some sort of “gas saver” mode that I could activate when on a long straight road not requiring lots of power.

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[MPerson]

Originally Posted by AppleSauseSi

Like everyone else I’m pissed off at the extremely high gas prices. I live in the country so I do a lot of straight cruising, I was wondering if there was a way to reduce the amount of fuel in the air fuel ration with some sort of resistor. Or maybe a dial that would send the ECU a signal telling it there’s not much air entering the engine. I know there’s a thing on ebay that tells the ECU the engine is getting a whole lot of air so it messes with the air fuel ratio; I want something opposite of that. It would need to be on a switch or dial because you would want power at times, and acceleration or what not. The whole idea would be some sort of “gas saver” mode that I could activate when on a long straight road not requiring lots of power.

Well that would hurt the engine running lean like that, I don't think it's worth saving 200cc's of fuel. But if you want to, you'd have to restrict the injectors somehow.

[BCheng_ca]

vtec-e?
some models on japan has a fuel saving vtec that use only 3 of the 6 cylinders during cruse

[hondatech]

You would run lean and smoke the engine, I heard about a fuel atomizer that would help you get a few more miles per gallon but can't find the site now. It probably didn't work to good. Suck it up and buy the gas.

[atlfalconz112]

its better to be too rich than too lean. if anything you want more gas in ur engine. running lean like that would destroy your engine. it wouldn't be worth it.

[hondatech]

Cylinder disabling is the next thing with Honda. I know it will be common place in the near future. I already hear about it when i go to factory training. It is in Japan already and it's suppose to work. I am a little skeptical however as GM tried this in the 80's and failed at it big time. Remember the cadillac's that disabled cylinder's? Most still around are running on 4 cylinder's instead of 8 now.