Hey guys, plz experts help me out here,...the problem is that my civic is running PERFECT on petrol but just DIE'S on CNG with A/c and sumtimes without ac too......ive gotten the plugs checked just 2days back, it ran ok at that time but 2day the same problem.....ive goten the throttle body cleaned, air filter changed and complete tuning of CNG.....it just screwes up everytime :@.....PLZ help out or suggest a nice mechanic in islamabad....would be waiting guys..also u can contact me on 03455158789