VAUXHALL COMBO 1.4 I LPG SYSTEM runs on petrol/lpg but misfires on lpg?

hi i own a vauxhall combo 1.4 1999 v reg converted by vauxhall after purchase by wirral council pre to me owning this motor the kits made by koltec it runs perfect on petrol on lpg it runs fine on lpg at top end cruising and on tick over but on accleration it mis-fires i have changed the plugs again putting in standard ngk normal plugs i had the lpg system safety checked and it passed the local garage could not do anything as they know nothing on lpg any ideas?

The main thing that goes wrong with the LPG is the gas distributor , this need to be removed and cleaned , if this does not work then it will have to be replaced.

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3 Responses to VAUXHALL COMBO 1.4 I LPG SYSTEM runs on petrol/lpg but misfires on lpg?

  1. techman711 says:

    The main thing that goes wrong with the LPG is the gas distributor , this need to be removed and cleaned , if this does not work then it will have to be replaced.
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  2. Waino says:

    not sure…however if you get a leak on an lpg tank..the fire brigade treat it as a major incident…so keep safe
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  3. zrxbloke says:

    change the coil/plug leads , i bet it back fires aswell when you put you foot hard down on the peddle
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