Have designed an excellant hho generator using open source which is delivering more than 1 lpm @less than 10A to be used in my opel corsa 1.4 engine. Test results are erratic. I do not want to use any other electronics and to disturb the existing electronics. Any ideas?

Any easy search on Y/A or on Yahoo or Google will quickly result in hundreds of answers that show that HHO/ such splitting of water on a vehicle to make usable hydrogen fuel is a SCAM and very energy inefficient. What's your motivation here?