Baleno backfire and missing on ncng

[mubin.islam]

I have 2005 baleno factory fitted cng. Its missing and back fire. I have changed the plugs and air filter but problem didnt solved. My fuel tank has also leaked.
Any advice or good mechanic in karachi
Preferebly north nazaimabad???

[abid110]

1. first of all, check your emulator. maybe some injector is not getting required current which makes the car miss alot on petrol (since injectors does not work on cng).

2. bad and leaking ignition coils - this again will result in missing and poor fuel consumption. baleno and Liana have this problem alot.

[anc]

Seems ignition coils issue

[malik94]

Check plug wires.backfiring in baleno can be fixed temporarily but cannot be cured for good. And will cause further damage. I have a baleno since 10 years.I would recomend taking off cng or changing car or swap with baleno gti engine(g15 or g16) if you want to run on cng.

[sajjad76]

check air passage leakage..

[jagsten30]

Back fire is the common problem in baleno because the air filter is not designed well to avoid back fire close the filter box tightly as u can and get it cleaned and changed on time and just buy A grade filter