Hello, how do I have a Siena 1.6 Model 2000 is a taxi he is well to CNG but he starts and turns off immediately and did not find a good mechanic at the 2 who took them they charged me and they did nothing to me and I need it to work has all the new injector but I do not live in the Federal Capital if someone knows a good mechanic that recommends me I appreciate it now I will get to do everything I will make everything I will make everything. gasoline is electric. Well greetings and thanks.