Hi Guys,

I collected my TJ Advance 03 today after having it converted to GAS. The system is Lo gas SGI system and the installer is from Malaga, WA. The sys comes with 2 yrs warranty and the cost was 4000/=, but will get 3000/= rebate, so 1000 from my pocket.

With crude oil price predicted to reach 100 US dollar/barrel (record price 87.5 per barrel today) pretty soon, I reckon its a good time for me to run it on GAS. Very happy so far. No check engine light, no real loss in power and no overheating so far. LPG injectors are a bit noisy though compared to petrol injectors. The sys uses the original computer injection signals and maps those for LPG injectors. Today drove it around for 50 kms in heavy traffic with climate control on and the trip comp is showing 14.5 lt/100kms atm. On petrol it was showing around 12.5 lt.

Guys, is it hard to do DIY LPG servicing? What is the service interval for LPG system and what involves in LPG servicing?

Thanks in advance.

Good move Steve95 wish i put the right system on mine after another explosion last week :( Post some pics. Dont rely too much on the trip computer they arent as accurate on the lpg. Re overheating shouldnt have any issues unless you have issues with your car.
I have been speaking directly with the supplier of this system tossing up which one i should go for and get rid of the old rubbish i have on mine even though it was installed 9 months ago.

Regards

Hey, good stuff post a pic of your installation.

the service interval should be stated in your manual, mine is 10000km, but my system is different and works like a carburetor system. Servicing involves checking for leaks with soapy water and remaping the air fuel mixture as i drifts in my system which was much heaper.

Good move Steve95 wish i put the right system on mine after another explosion last week :( Post some pics.

Guys, some pics of Installation.

1. Tank
2. Injectors and bla bla
3. SGI computer and vapour mixer, solenoid

I can't find any difference in terms of power and smoothness between gas and petrol :) . At first few stops, idle is a little bit jerky on gas, rpm still the same. During the auto transition from petrol to gas, there is a little hesitation as it stops the petrol injectors and turn on LPG injectors. LPG injectors are a little biy noisy though. In the morning, it takes around 1/1.5 kms of drive before it switches onto LPG, when hot it switches very quick. Happy so far. lol

Good move Steve95 wish i put the right system on mine after another explosion last week :( Post some pics. Dont rely too much on the trip computer they arent as accurate on the lpg. Re overheating shouldnt have any issues unless you have issues with your car.
I have been speaking directly with the supplier of this system tossing up which one i should go for and get rid of the old rubbish i have on mine even though it was installed 9 months ago.

Regards

You shouldn't be having issues with a non injected system. If you are having problems with backfiring it generally means you have an underlying ignition problem (faulty plug, leads, distributer cap etc) The only time i had an issue with mine was after i put in new plugs (turned out one was faulty). Take the car to a different and reputable gas installer if your one can't get it right.

You shouldn't be having issues with a non injected system. If you are having problems with backfiring it generally means you have an underlying ignition problem (faulty plug, leads, distributer cap etc) The only time i had an issue with mine was after i put in new plugs (turned out one was faulty). Take the car to a different and reputable gas installer if your one can't get it right.

Shouldnt be having issues i agree. Bottom line the setup i have is utter crap i know of 4 others with a similar setup who are also having issues on the same model vehicle.
All the above have been changed multiple times my pajero doesnt have a dissy . Coil packs swapped those too. Gaffer tape works wonders lol..
Will sort it once and for all in the very near future.

Back to the original topic.

Looks good only thing where they have the lpg ecu they could have cleaned up the wiring. If its idling a little strange take it back the tune may need to be tweaked a little.

Regards

Great to see more people getting gas. Did you experience any power loss? Looks like a nice set up though.

i like very much...

can you get a wheel well tank instead???

Did you experience any power loss? Looks like a nice set up though.

I can't feel any power loss, but may be because I am not a drag driver. SGI manual says the power loss is in the range of 1-3%.

i like very much...

can you get a wheel well tank instead???

Yes, you can, but the cost will be higher I believe. I didn't go for wheel tank option because I have to the carry the spare tyre anyway as I will get a yellow sticker just in case I get stranded because of tyre issue and I do not carry any spare.

Yes, you can, but the cost will be higher I believe. I didn't go for wheel tank option because I have to the carry the spare tyre anyway as I will get a yellow sticker just in case I get stranded because of tyre issue and I do not carry any spare.

fair enough

no spare isnt a roadworthy issue in victoria :P

and most of us nuts have that much audio in the boot....... thats why i want the wheel well option...



no one could feel a 1-3% power loss, not possible... a set of extractors etc... would easily return that loss back to nothing if not a gain, and even improve the economy even further

i take it yours was an lpg compatible engine then

i take it yours was an lpg compatible engine then

Yes, it is LPG compatible (TJ Advance).

Guys, the installer asked me to take it back after 6 months for a check/tune etc.? Do you think it is necessary or he just wants some more money in his pocket? Also as it starts on petrol and runs about 1.5km on it every morning before switching to LPG, should I drive the car solely on petrol once a week to keep petrol sys spot on?

Thanks

I can't feel any power loss, but may be because I am not a drag driver. SGI manual says the power loss is in the range of 1-3%.

You don't have to be a drag driver to noticed a power loss. From what i've read in my parnell manual it's only in acceleration. I'm guessing by the size of the tank it's an 80 litre one?


Yes, it is LPG compatible (TJ Advance).

Guys, the installer asked me to take it back after 6 months for a check/tune etc.? Do you think it is necessary or he just wants some more money in his pocket? Also as it starts on petrol and runs about 1.5km on it every morning before switching to LPG, should I drive the car solely on petrol once a week to keep petrol sys spot on?

Thanks

Actually that means he cares about the system he installed, you should get it tuned to make sure it's running smoothly and it's recommended to run your car on petrol for a few days every month around 2-3 so the gas doesn't clog the injectors, as gas is a dry lubricant fuel, petrol is a wet lubricant.

And thats a bit strange the car runs for 1.5 on gas, it's meant to only start on petrol then flick over to gas in a few seconds then you leave it to warm up.

Yes, it is LPG compatible (TJ Advance).

Guys, the installer asked me to take it back after 6 months for a check/tune etc.? Do you think it is necessary or he just wants some more money in his pocket? Also as it starts on petrol and runs about 1.5km on it every morning before switching to LPG, should I drive the car solely on petrol once a week to keep petrol sys spot on?

Thanks

Yes lpg computer calibration drifts like leaning out at idle or richer at higher revs which requires adjustment. Like mine, you can tell when it starts idling rougher or theres an unexpected jump in lpg consumption.

Please review the terms and conditions of your warranty as mine has a free 1 year adjustment and tuning anytime required by the car.

Peoples its and SGI system. The installer can set the change over point where he wants it works of a temp sensor you can adjust the change over point. eg when vehicle engine temp reaches 30 degrees celcius change over to LPG you can adjust this setting with the tools the installer uses. It pretty much operates like a normal efi car. The ecu has its own map which can be adjusted by the installer and most of these systems are self tuning when you initially start them once installed. Worth getting it looked at in case in needs a tweak here or there later on in life. Some systems utilize the 02 sensor on this one its optional you dont have to use it. Personally i would use it. The mixtures should be preset once the auto tuning sequence is done with minor touch ups when completed. I cant see the mixtures changing unless your 02 sensor is stuffed or you have some sort of vacume leak or another underlying issue.
The only maintenance this system may require is the filter that is installed for lpg i believe you need to replace it once a year.

Have a look at this link if intrested it will give you some good info how they are installed how they operate and tuning, manuals and so on. Note im not connected with this company in any way just posting the link for some educational purposes. http://www.lo-gas.com/

Definetly have a look in the downloads area .

Regards

The only maintenance this system may require is the filter that is installed for lpg i believe you need to replace it once a year.

Regards
Thats exactly what my mechanic suggested. SGI system requires low mainenace. Just wondering can it (filter change) be done DIY? Also he suggested to put in LPG suitable Engine oil at the next servicing? I have seen some motor oil for LPG engine at Repco, super cheap stores. Currently I am using Motul 4100.

Whats your advice on LPG suitable motor oil? Does it do any good?

cheers