Originally Posted by
myoldyourgold
Unless your diesel has an O2 sensor it should not do anything adversely by adding magnets. Even then I have not seen the computer change anything when using magnets. The type of small change that takes place should not affect the ECU. Adding HHO will just help everything when done right.
Please explain exactly where you installed the magnets and how they are oriented in relation to the flow of fuel? What type of magnets and what are their sizes? Answers to these question might help solve your problem.