Search found 3651 matches

by LPGC
Thu Feb 27, 2020 10:31 am
Forum: General Discussion
Topic: Disappearing LPG pumps...
Replies: 34
Views: 344

Re: Disappearing LPG pumps...

Ahh yes LNG not CNG... I don't know much at all about LNG but guess there isn't much difference to CNG and LPG following the reducer stage. Found this which confirms trucks do run on 100% NG and it's renewable... https://www.commercialfleet.org/news/truck-news/2019/05/22/cng-fuels-to-open-biomethane...
by LPGC
Wed Feb 26, 2020 11:39 pm
Forum: General Discussion
Topic: Disappearing LPG pumps...
Replies: 34
Views: 344

Re: Disappearing LPG pumps...

In the UK natural gas (NG) is piped to most houses but compressed natural gas (CNG) is sold at only very few forecourts. LPG wins over CNG in terms of engine power and availability but in my mind it would only take homes and maybe workplaces being fitted with CNG compressors to make CNG almost as vi...
by LPGC
Wed Feb 26, 2020 10:08 am
Forum: General Discussion
Topic: lpg tank won't fill up
Replies: 9
Views: 222

Re: lpg tank won't fill up

Did you find out what was wrong with the old tank/valve? If it's full - could be a stuck solenoid, broken solenoid coil, stuck shut manual service valve, stuck shut excess flow valve or liquid pickup pipe fallen off. If it's empty - could be the float mechanism is broken in a way which sees the inle...
by LPGC
Tue Feb 25, 2020 2:51 pm
Forum: Running a V8 on LPG
Topic: Advice please!
Replies: 23
Views: 107

Re: Advice please!

One way of doing it is to use the yellow wires. The yellow wires, relay they're connected to in the unit and tracks on the PCB in the unit won't carry the current for the pump directly but are OK to control a relay coil (original vehicle petrol pump relay or a separate relay you fit in the petrol pu...
by LPGC
Tue Feb 25, 2020 1:49 pm
Forum: Running a V8 on LPG
Topic: Advice please!
Replies: 23
Views: 107

Re: Advice please!

Pinger wrote:
Tue Feb 25, 2020 1:01 pm
Do you know if the AEB/Millenium system shuts down the petrol pump when running on LPG?
You can wire it to do that but usually the petrol pump is kept running.
by LPGC
Tue Feb 25, 2020 12:24 pm
Forum: General Discussion
Topic: Setting up a Stag L Plus
Replies: 43
Views: 370

Re: Setting up a Stag L Plus

I've repaired dozens of Koltec systems but have also replaced a lot of them with sequential front ends. Steppers can look the same but be different.. e.g. plunger end design, total range of movement, range of movement relative to the mounting plate, movement per step (gearing), O ring design, mounti...
by LPGC
Tue Feb 25, 2020 11:16 am
Forum: General Discussion
Topic: What pressure should a Single point vapouriser/reducer be set to?
Replies: 40
Views: 479

Re: What pressure should a Single point vapouriser/reducer be set to?

For testing purposes just cobble up some sort of restriction to place in front of the mixer / intake. If venturi size / lack of signal is the problem a big enough restriction will reveal it. Could just use your hand... but it can sting a bit like getting a slap if you get a backfire during the proce...
by LPGC
Tue Feb 25, 2020 10:57 am
Forum: General Discussion
Topic: Are all petrol cars now direct injection?
Replies: 2
Views: 24

Re: Are all petrol cars now direct injection?

Most but not all engines in new cars are direct injection. This website https://www.noln.net/articles/3476-noln-launches-list-of-direct-injection-engines has a list of engines that are direct injection but it's not a concise list and is for the American market, some models of vehicle get different e...
by LPGC
Mon Feb 24, 2020 5:14 pm
Forum: General Discussion
Topic: Setting up a Stag L Plus
Replies: 43
Views: 370

Re: Setting up a Stag L Plus

Doubt it especially not on a Volvo with the standard Volvo Koltec fit stepper, the Volvo spec stepper has stepper driver electronics fitted directly on top of the stepper where-as steppers on other Koltec systems have the stepper motor driver in the LPG ECU rather than directly mounted on the steppe...
by LPGC
Mon Feb 24, 2020 3:45 pm
Forum: Running a V8 on LPG
Topic: Advice please!
Replies: 23
Views: 107

Re: Advice please!

To answer your questions thoroughly would involve a lot of typing! If you search this forum you'll find they've already been answered many times, the answers are obvious anyway when you have a decent grasp of the basics. In brief... Injectors - Can't run petrol injection pressure to LPG injectors, p...
by LPGC
Mon Feb 24, 2020 12:40 pm
Forum: General Discussion
Topic: Setting up a Stag L Plus
Replies: 43
Views: 370

Re: Setting up a Stag L Plus

AFR is based on mass of air versus mass of fuel, mass is the critical factor in terms of AFR... So if we go only on the basis of AFR and ignore other factors it will seem that an LPG mixer reducer should be able to provide richer mixture on CNG than on LPG (all other things being the same) because A...
by LPGC
Mon Feb 24, 2020 10:39 am
Forum: General Discussion
Topic: Setting up a Stag L Plus
Replies: 43
Views: 370

Re: Setting up a Stag L Plus

As said, you don't necessarily need a TPS but a TPS can help with some types of setup issues and can add some refinement. Correct ratio of air:gas (different for CNG to LPG) is probably connected to your lean issues running on CNG: Stoichiometric air-to-fuel ratios of common fuels Fuel Ratio by mass...
by LPGC
Sun Feb 23, 2020 5:55 pm
Forum: Running a V8 on LPG
Topic: Advice please!
Replies: 23
Views: 107

Re: Advice please!

It needs an RPM feed to know the engine is running or will shut off the LPG solenoids. RPM reading also makes for subtle differences e.g. speed of stepper movement is different between idle/off idle/high rpm. If you don't connect TPS some AEB175's will assume high load at above around 4500rpm regard...
by LPGC
Fri Feb 21, 2020 8:24 pm
Forum: Find an LPG Professional
Topic: VW Golf R32 converted by LPGC
Replies: 11
Views: 2957

Re: VW Golf R32 converted by LPGC

That's interesting Bri, I seldom use the forum on my phone but don't believe the forum itself differentiates between phone and laptop users (as some sites do, e.g. m.ebay etc)?
Not clued up on IT any more :-( hehe.
by LPGC
Fri Feb 21, 2020 5:16 pm
Forum: Running a V8 on LPG
Topic: Advice please!
Replies: 23
Views: 107

Re: Advice please!

Check / read manifold pressure at wide open throttle high rpm, it doesn't matter if you do it running on petrol or on LPG the result will be the same.. I think you'll find manifold pressure reaches atmospheric pressure with the 3 inch restriction on your engine anyway, in which case the 3 inch mixer...
by LPGC
Fri Feb 21, 2020 2:25 pm
Forum: Find an LPG Professional
Topic: VW Golf R32 converted by LPGC
Replies: 11
Views: 2957

Re: VW Golf R32 converted by LPGC

The pics have been blurred by Photobucket.. Not sure if this is something relatively new that Photobucket have started doing... A long time ago Photobucket stopped their free service and Photobucket links we used on forums stopped working (unless we paid Photobucket lots of money). But there was a f...
by LPGC
Fri Feb 21, 2020 1:40 pm
Forum: General Discussion
Topic: What pressure should a Single point vapouriser/reducer be set to?
Replies: 40
Views: 479

Re: What pressure should a Single point vapouriser/reducer be set to?

Probably a lesson in sucking eggs! All air that enters the manifold must come through the mixer/Blos or it will run lean, including any air that enters the manifold from a crankcase breather. If there's a crankcase breather to the manifold and the engine case has any air leaks (oil filler, dipstick,...
by LPGC
Fri Feb 21, 2020 12:11 pm
Forum: General Discussion
Topic: Setting up a Stag L Plus
Replies: 43
Views: 370

Re: Setting up a Stag L Plus

Changeover switches for carb vehicles have 3 positions, petrol / no fuel / gas. AEB 175 systems only have 2 positions, petrol / gas. AEB assume 175's will be fitted to a vehicle that has a lambda probe and carb vehicles don't have lambda probes so they're designed for fuel injected vehicles and on f...
by LPGC
Thu Feb 20, 2020 10:26 pm
Forum: General Discussion
Topic: Setting up a Stag L Plus
Replies: 43
Views: 370

Re: Setting up a Stag L Plus

No probs :-) With experience you can tell if an engine is running very lean/ very rich without having to buy expensive techy gear though ;-) A vacuum gauge is a good a tool for checking idle mixture (especially for a known engine in good condition)... but even without any of that info I can usually ...
by LPGC
Thu Feb 20, 2020 9:10 pm
Forum: General Discussion
Topic: Setting up a Stag L Plus
Replies: 43
Views: 370

Re: Setting up a Stag L Plus

The lambda emulation is ideal for vehicles where error codes won't be generated as long as the petrol ECU sees flicking lambda voltage with installs where mixture may hang lean or rich for long enough to otherwise cause an error code. Also great on vehicles where long term fuel trims won't be steere...