Have been told you cant put gas on that model, is this true

Tiny
RUFFY
  • 2000 KIA CARNIVAL
  • 190,000 MILES

Hello. Car on lpg and petrol, backfires back through airbox when on gas big time, haqs just blown air cleaner box to pieces, any ideas please.. Thanks. Ruffy

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Friday, September 9th, 2011 AT 9:16 AM

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Tiny
KHLOW2008
  • EXPERT
  • 41,937 POSTS

I have seen such vehicles with CNG running around. The problem could possibly be due to a misfiring causing the backfiring.

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Friday, September 9th, 2011 AT 12:49 PM
Tiny
RUFFY
  • MEMBER

Thank you

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Friday, September 9th, 2011 AT 12:56 PM
Tiny
FIXITMR
  • MEMBER

Get some new spark plugs. NGK or Bosch will be fine. You'll want to get plugs that are one range COLDER than specified for a similar petrol-only engine and with a narrower electrode gap (0.8mm). This will provide increased driveability and resistance to backfire on LPG.

A good set of HT leads will also be of benefit as you'd be eliminating another common cause of backfire.

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Sunday, September 11th, 2011 AT 7:06 PM

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