Santro CNG Backfiring............ Again

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Santro CNG Backfiring............ Again

AOA fellow gari.pk!
guys my santro is backfiring like hell on CNG. airfilter cover pops up as a result of it causing power loss. but as soon as i convert it to petrol, it runs fine with a bit of rough idling. i posted my problem earlier aswell but didn't get any satisfactory reply. someone suggested to change the spark plug wires but i wanna tell that the car works fine on petrol with the same cables, its backfiring on gas only. went to these faisal town conversion centre guys in multan, he tinkered with the cng settings, which i can do myself, and the car ran fine for a few days but the problem is now persisting. plz help the rectify this problem.

P.S. don't suggest to change the airfilter, i change it after every 2000km and bought an aircompressor to clean it every other day.

Gari.pk User 5719 asked on 30 Jul 2010 12:18:30 pm

1 Answer

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Samar - on 30 Jul 2010 12:18:38 pm

dear i got the same problem with my santro. but consequently nothing went on positive untill/unless i changed my plug cables. it z just because of HT Cables Car needs maximum voltage on Gas if cables are weaker so this problem arises in Gas.