Quote:
Originally Posted by Olympiadis
I may give the TPS tricker a try though. I'd like to see just how well it mates with cruise-control on the highway. I wouldn't expect very good results on this Focus though. It has a MAF and very quick adaptive fueling. It's something I'll have to try to know for sure.
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One of my major issues with testing is no serious data feedback...this is the first EFI version for this truck. Plus dist...connector...other issues to work around.
Since I run the wires from these two "sensors" inside there is also some slight effect from the resistance of these wire runs.
As far as the TPS mod...it depends on the vehicle...need the FSM to see what type the output is in order to modify it. Ford I think uses frequency or ??...instead of voltage? I think MAF can also be modded. Main thing is to not lean it out too much.
As mentioned I really suspect that a vaporizer combined with these mods would result in some mpg gain...but I'm slower than molasses getting things done....testing fatigue.
The idea being to drip a small amount of gas from the return line on EFI or from line to the carb otherwise...into the PCV circuit and through 7-10' of fuel resistant rubber tubing to the intake...cold vapor...the gas temp never gets above 100F or so. I'm having issues with the relatively crude valve closing up on me...they do make lab quality sensitive and consistent true needle valves for around $25 or so. I also use a PCV jar in this line at a low spot to be able to observe any liquid gas collected.