There has been some confusion on what type of direct injection signal the HFS-3 can read.
The HFS-3 will be only able to read directly injection signal if it is re-configured by aquamist or selected dealers. It the system is not ocnfigured properly, it will not work. For those of you who want configure the system yourselves (soldering iron required), please contact me at
richard@aquamist.co.uk. I need to know the car model and year of manufacture.
It can all be done, but there isn't a "one size fits all" because there are so many types of direct injerction system around. This applies to diesel and gasoline engines.
Richard