LPG Gas Problems on D2 - brand new installatioin

[Slow Disco]

I've just had a sequential vapour injection Lpg system installed on my Disco 2, with petrol tank removed and an aux tank of 52 litres. Picked up yesterday and drove from Western Sydney to Yass. Car was idling roughly on gas and petrol. Car drove well on both and made good power. Driving home around Ingleburn the car started missing with part throttle at 80,90,100,110, 120km. Apart from that, car went well.

Next morning, had a quick look under bonnet and noticed 3 clamps which hold the gas lines onto the gas injectors weren't where they should be, an oversight on installation I guess.

Started car and let warm up for 5 minutes and drove off, car was nearly stalling and backfiring (running on petrol). Car was gutless on petrol, until it switched over to gas, then ok and made power. Idle was still rough on gas.

Drove to work, missing at highway speed was increasing.

Drove home this afternoon, car missing and backfiring on petrol, which I think has ruined my airflow meter. I had only replaced it a few weeks ago. It was giving the same symptoms as the previous meter which was damaged (pre lpg).

Kept driving home (total trip is about 90km), car is totally gutless/unresponsive and miss is massive.

Car has a brand new k&n filter which was on car prior to lpg and new platinum plugs 3k old. I have been given cheper NGK plugs (BKR6E) which I was going to install this weekend, also given a paper air filter.

So as it stands, the air flow meter is likely to be damaged as the result of the back fires - I got the vapour injection so there would be no backfires.

Rang Gas installer, he reckons it's a problem with injectors which pulse for the gas injectors as well. Funny how the car was running perfect and making good power prior to the gas conversion.

Looking for some ideas, fixes, experiences help etc.

What a pain, cost $5720 - Mr Howards gas rebate $2k. So as you can imagine I'm annoyed.

Thanks.

[101RRS]

If it is a brand new installation - take it back - you play with it and you have no come back

[4bd1discovery]

I've just had a sequential vapour injection Lpg system installed on my Disco 2, with petrol tank removed and an aux tank of 52 litres. Picked up yesterday and drove from Western Sydney to Yass. Car was idling roughly on gas and petrol. Car drove well on both and made good power. Driving home around Ingleburn the car started missing with part throttle at 80,90,100,110, 120km. Apart from that, car went well.

Next morning, had a quick look under bonnet and noticed 3 clamps which hold the gas lines onto the gas injectors weren't where they should be, an oversight on installation I guess.

Started car and let warm up for 5 minutes and drove off, car was nearly stalling and backfiring (running on petrol). Car was gutless on petrol, until it switched over to gas, then ok and made power. Idle was still rough on gas.

Drove to work, missing at highway speed was increasing.

Drove home this afternoon, car missing and backfiring on petrol, which I think has ruined my airflow meter. I had only replaced it a few weeks ago. It was giving the same symptoms as the previous meter which was damaged (pre lpg).

Kept driving home (total trip is about 90km), car is totally gutless/unresponsive and miss is massive.

Car has a brand new k&n filter which was on car prior to lpg and new platinum plugs 3k old. I have been given cheper NGK plugs (BKR6E) which I was going to install this weekend, also given a paper air filter.

So as it stands, the air flow meter is likely to be damaged as the result of the back fires - I got the vapour injection so there would be no backfires.

Rang Gas installer, he reckons it's a problem with injectors which pulse for the gas injectors as well. Funny how the car was running perfect and making good power prior to the gas conversion.

Looking for some ideas, fixes, experiences help etc.

What a pain, cost $5720 - Mr Howards gas rebate $2k. So as you can imagine I'm annoyed.

Thanks.

where did you have it fitted?

[Slow Disco]

If it is a brand new installation - take it back - you play with it and you have no come back

I can take it back, but the installer said they have no idea why it's running so crap. So if I get someone else to look at it who has a clue, it's likely to get sorted (fingers crossed) and I can bill the monkey for the work.

[Slow Disco]

where did you have it fitted?

LPGas1 in Michinbury, western Sydney.

[4bd1discovery]

LPGas1 in Michinbury, western Sydney.

ring dieselgas technologies located at penrith
(outer skirts of sydney)
they will fix it in no time mate.

[4bd1discovery]

47213675

[PAT303]

My D1 ran just like yours after the conversion,it didn't before but did after on both petrol and gas.I fitted low resistance leads and plugs and that was the fix,later it did it again after I gave it some welly and found it had sucked the air filter into the airbox and blocked off the intake to the motor.The airbox on my disco is rubbish and I am going to replace it with a clamp on filter to the MAF sensor.LPG needs a stronger spark,I have had 3 gas vehicles and they all needed it done. Pat

[Slow Disco]

Pat,
Mate - thanks for the advice, was just thinking leads and possibly coil packs.
Cheers.

[PAT303]

Just to add,make sure the leads are in the little clips and not touching anything,especially anything metal and not crossed over.It all helps. Pat