bad mileage

by john

My 1994 ford has a hho system that is working perfectly but I am getting bad gas mileage. Should I get a chip or an efie?

Comments for bad mileage

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Response From


The chip will not work on your 1994 Ford because it is not an OBD2 computer, you have an OBD1.
You do not say if it is gas or diesel, if it is gas then yes we recommend the EFIE .

If you need help on which one please contact us with your Year-Make-Model & Engine Size.

If it is a diesel engine then the universal MAP Sensor Enhancer (bottom of page) is what you want. It also works on MAF Sensors, which I believe is what you have.


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