TJ starts put stutters & backfires when throttle pressed...help!

my 97 4.0l inj wrangler has developed a fault ....

it starts but as soon as i press the throttle it stutters and backfires.

plugs changed, ignition leads and distributer cap changed no change

the car has been converted to dual fuel .....lpg/petrol

it was working fine on lpg.......but then developed this fault at start up

now its on both.......

could it be a sensor in the carb??...if so which one?

can you clean these.or is it a replacment?

could it be the sensor was on it way out .....when on lpg it worked (as lpg is thinner then petrol)

but now its knackered?

Reply to
Mick Miller
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Reply to
L.W.(ßill)

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