Cultus VXRi CNG switch

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waqar747 (waqar747) 2010-03-25 06:59:07 +0500 #1

Can anyone help me with this small issue?
I have just got a 2007 Cultus VXRi from work and I need to know how the CNG switch works. I have used 2-3 different types of switches on different cars before but this one seems different.
1. Does the car start on petrol and then convert to CNG on a specific RPM or after a time interval? If yes, then what is the RPM or time interval?
2. When the car is on CNG, why is my CNG green light blinking? This is the light which shows the car is on CNG, like the orange light for petrol.
3. On EFI, and specially on this Cultus kit version, what is the correct way to change from Petrol to CNG and vice versa? Is it just a single switch press both ways affair?

Thanks for help in advance.

waqar747 (waqar747) 2010-03-28 14:09:52 +0500 #2

So many Cultus owners and no replies?
Somebody must know something..

mubbashar (mubbashar) 2010-03-28 16:45:58 +0500 #3

hi dear, its simple
culuts vxri starts on petrol and after 90 second interval , it converts to cng when rpm goes to 2 or above 2. Means to say that before 90 second, it cannot convert to cng even you push paddle to 3000 rpm.

CNG light will blink always, this is fault you can say.....
When you remove battery terminals for some time and then for somedays it will not blink but thats not problem.

ok, any other info?

waqar747 (waqar747) 2010-04-06 03:19:40 +0500 #4

Thanks Mubbashar. I also learnt from someone how to start the car directly on CNG. With the car in CNG mode, you turn the ignition to 'ON' (not 'Start'). Then you press the CNG switch once and release, then press and hold it for a few seconds until you hear the mechanism convert. You can then start and the car will already be on CNG. I don't know if this is recommended though. I start my day with the petrol start and then the rest of the day's starts (3-4) directly on CNG. Hope this doesn't ruin it

bsiraj (bsiraj) 2010-04-06 03:52:18 +0500 #5

Many Many Thanks buddy....I Tried and it really works.

Superiority (Superiority) 2010-11-04 18:30:52 +0500 #6

Thanks for posting the CNG direct start method for Suzuki Cultus EFi.

Sharo53 (Sharo53) 2010-11-04 19:13:11 +0500 #7

to start the car directly on cng is not recommended..
it will ruin the cng kit and will have bad effect on the engine..
this method should b used in the case of emergence as like u ran out of fuel...

amansoor (amansoor) 2012-02-18 00:50:21 +0500 #8

need help with fuel convertor switch
as it start problem whenever i want to
convert to petrol from cng. Only a click
sound comes from switch and all leds
blink once then return on cng state
again with no change. And some time car start missing when this heppens its
due to mixing a small amaunt of petrol
with gas i think. Is it switch problem or
some relays which didnt pickup fuel
pump load. Plz help me

argtr65 (argtr65) 2012-02-18 14:04:44 +0500 #9

Remove conversion switch from dashboard and check the wiring harness connected to the switch,it might be loosed or melt down.If it is ok then you will have to replace the switch.

amansoor (amansoor) 2012-02-22 08:29:49 +0500 #10

thanks for help i have checked wiring harness and switch connector all seemed fine. so i just replace CNG relay which was installed close to CNG regulator by electrician and for now it look like my problem is solved further i will check fuel pump relay and wiring to confirm if there is any kind of problem.

pwuser156568264549 (PWUser156568264577) 2019-09-10 11:03:18 +0500 #11

Plees tell me my cults efi 2008 cng switch no lite petrol no lite

umairafzalrana (UMAIR AFZAL) 2019-09-10 13:58:36 +0500 #12

The efi cultus automaticAlly starts on petrol and then itself converts on CNG.
To change from CNG to petrol or petrol to CNG
U have to press button only once