Bought the Volo_DS2_HHO_Ed chip and am 30 miles or so past the 120 mile dial in period where the chip is supposed to auto-adjust to engine parameters.
impressions? Seems to give more power under acceleration when using warm air intake now at 45-50F above ambient vs the ECU settings. On this last trip I saw the best trip mileage on local backroads with lots of stops and curves that I've seen yet.
Installation was a bit difficult due to the data port being upside down on the Focus and trying to translate the wire positions to the BACK of the port from the front...but I got it wired in.
Have a 30 day return policy.
Expect to have a full tank result this month.
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