CNG related problems

[aashirnaveed]

I have honda city 2001 model.
The problem is that the car doesnt have pick on CNG when the AC is on.
It only does this on CNG,runs smoothly on petrol.. The pick is very slow. I have tried tunings adjustments but nothing could help that much. What could be the problem?

[onlyfaith]

fyq bhai plz return to your thread.
your services are desperately required.

[anonymous101]

Hello Fyq ! I have alot of confusion After the CNG kit installation on my Corolla Xli 2010 . It has a normal Efi Kit installed and till now the car has only driven 5000 km . However i do know that many people have pointed out valve problems in the Xli but till now i can't even trace out even a slight problem in the car . So i ask you that When will i be encountering problems in the car ? And whats the solution ?

[L_Ali]

Dear bro!
I have Honda City 2006 model CNG installed. I have no issue but facing one problem during starting my car. When I start my car its start normally but suddenly switch off because the car convert from petrol to CNG.... after 2,3 try the car start normally and doesn't turn off then. I want when the car start in petrol will stay on for some time and then convert it to CNG. So kindly let me know is it possible? if yes then please guide me how to change the setting by myself

[fahadwizz]

I have a problem. It keeps getting expensive !!!

JK

[saadulislam]

DEAR Bro
Just bought CIVIC VTI ORIEL. its CNH consumption is very high. does 85-90 km/55L cylinder. tried tunning from different mechs but no use. need ur help. thanks

[ghufi]

HELP!

vitz 2002 cng problem no pick on cng vid a/c........after 100km/h car mey power khatam hu jati hey(vidout a/c)....can u suggest me any gud mechanic in lhr for setting nd tuning

and knocking problem.......on petrel

[drnaeed]

السلام عليكم

FYQ Brother,

I appreciate your help and guidance to the forum.

I am sorry for the inconvenience, but I am planning to buy Toyota Passo 1.0 Automatic 2007/2008 and request you to guide me whether it will be possible to fit CNG KIT in it as my serveyshows no such vehicles with CNG Kit.

Your help will save me a lot any future botheration.

Regards,

Akhtar Naeed
Abbottabad

[onlyfaith]

where can we find CNG spares in RawalPindi these days..

[Aqeel116]

AOA Fyq, May god bless you..
I am having same issue with my Suzuki Mehran.. i nomally dont use AC in Mehran and it runs perfectly ok on petrol but on Cng it does lots of missing with jerks and noise from air filter i guess, i got engine and cng tuned , changed plugs , changed plug wires , changed point , changed condenser but its still the same on CNG the mechanic is fed up of my car now and now he is saying to get the ignition coil changed..but i am not sure if still had to trust on him may be that's also not the issue.. then today i got a ignition coil of a working cultus and got it fixed in My mehran its working fine on cng now but engine lost pick and behaving abnormally electrically i.e. if i turn head lights to high bean or turn on wiper the deck restarts etc.. Please please some one advise me what to do Do i have to buy new bottle ignition coil if yes of what specs or what else do i do..
Also Please let me know Which Ignition coil is best with highest rate of output voltage Here in lahore i found brand new Denso coils with internal resistors identical in packing shape and every thing from rate of 2400 to 3100 -i am confused - Another option i found is Bosch Blue coil brand new for 1800 with external resistor other options are Kabli coils with external resistor from 1000 to 1600 range.. Please guid me which one to buy if i really have to change my current coil What you say about Bosch Coil is it reliable and strong ..?

[yasiraza1185]

Dear Bro, i have cultus VXRi 2007 and it has a 55l cylindar, the problem is with milage, it gives only 90 to 100 k/m in local and last time it gave 175 KM on long route without A/c, last time the mechanic did some adjustment with the air intake but i m still not satisfied with the performence, please help

[syedsarosh]

@yasirraza1185...

u stated mileage, but mentioned the speeds i guess (i.e. 90, 100, 175) ... if u are talking abt speed then variables are many ... it can be cuz of economical setting of CNG, or the insuffieicent air needed byt the carb (carb dirty or clogged), or the clutch plate is worn out and is nt gripping properly, or the alignment of wheel can reduce ur speed targets, or u filled CNG of low quality (u never know),

so there are many variables ... plz put down ur obeservations in detail of ur probelm persists

[syedsarosh]

@aqeel116

hi dear,
ur message reminded me of wat mistake i used to do long ago,,, and relied heavily on mechanics "change this , change that" strategy

a brotherly advice "dont change the ignition coil" , the mechanic is fed up cuz he knows nt of the car, he relies on his expreience of jugaar or from his ustaad ...

abt changing point ... when u see and observe that its dirty enough, and then a good branded one, it wil last long, and u can convert to CDI so that point issue doesnt arise later (mechanics enjoy with ur money every 3rd month due to Point problems)

condensor change, it is only changed whn the current is insufficient at the point or the plugs, and weak spark is oberved.

plug wires, never change the original ones 'juz like that' ... either they are melted due to some short circuit, or the water presence at rain or after servicing, at the plug end, melts and destroys,

plugs, buy good plugs, nt the usual ones of 120 or 150 or 180 ... u can adapt this strategy of buying double contact plugs (once in 3 years, cost abt 250 each) ... they dont get much dirty early, and give stronger and wider spark for fuel efficiency, u wil observe the change urself ...

ignition coil ...plz dont change it ... u wil regret, u wil buy a used kabuli one or the desi repaired by mechanic, or the original wil be really expensive

understand the engine first ... CNG setting will do good for CNG ... petrol setting wil do good for petrol ... there are trade-offs for both settings..

mehran case

for example.. if u set very economical CNG setting, then AC wil work on it ... and if run on petrol, car wil drink it, cuz of less air for it, and advancer difference.

if u set good petrol setting, CNG wont be good at idle, and might nt even start, or if its set to start well, then again it wont be efficient, ur car wil drink CNG like air ....

advice
first decide wat primary fuel u want to set, CNG or petrol .... if its set on CNG, then observe the idle throttle of CNG, mehran doesnt have the tachometer, so u need to closely observe the rpm, mechanic does it on sound and vib of engine ... u need to play with two CNG inputs... for best idle setting .. if those are set by ur mechanic welll (if u really trust the doctor professor mechanic sahab), then observe the ac idle linkage at the left side of carburetor ...

if u dont know wat im talkin abt, juz post pic of engine area from top and i wil tel u whr is it ... then with a philips flat screw driver, unlock the screw... it will increase the idle in case ac is on .... the ac wil work whn rpm it requires are enough ... alsio mention if u have a factory fitted ac or desi fitted one ...

regards

[ghulammurtazam]

Bro i own a cultus vxli (after market kit) i am facing some serious pickup and acceleration issues on ac from quite some time. About 2 months ago the i changed the advancer which according to my mechanic was not working properly and plus he also did some wiring work with the advancer i dont exactly remember what he called it but he changed the whole wiring connected to advancer i guess, after that the car worked fine for a week or two but again it started bubling (kaapna) on ac and same pickup issues when i again went to my mechanic he just did some setting nd it was all set and this problem occurs every 2 to 3 week and he never tells me what the real problem is. Will u plz help me on this
I would also like to tell you one more thing that when i got it checked from another cng mechanic he said do number advancer lagwaya he is that the problem if yes then i guess my mechanic cheated on me and plus how can i trust the other mechanic coz every other person in this market is almost same so plz help me on this i would appreciate ny of your suggestions
Thankyou

[Aqeel116]

@aqeel116

hi dear,
ur message reminded me of wat mistake i used to do long ago,,, and relied heavily on mechanics "change this , change that" strategy

a brotherly advice "dont change the ignition coil" , the mechanic is fed up cuz he knows nt of the car, he relies on his expreience of jugaar or from his ustaad ...

abt changing point ... when u see and observe that its dirty enough, and then a good branded one, it wil last long, and u can convert to CDI so that point issue doesnt arise later (mechanics enjoy with ur money every 3rd month due to Point problems)

condensor change, it is only changed whn the current is insufficient at the point or the plugs, and weak spark is oberved.

plug wires, never change the original ones 'juz like that' ... either they are melted due to some short circuit, or the water presence at rain or after servicing, at the plug end, melts and destroys,

plugs, buy good plugs, nt the usual ones of 120 or 150 or 180 ... u can adapt this strategy of buying double contact plugs (once in 3 years, cost abt 250 each) ... they dont get much dirty early, and give stronger and wider spark for fuel efficiency, u wil observe the change urself ...

ignition coil ...plz dont change it ... u wil regret, u wil buy a used kabuli one or the desi repaired by mechanic, or the original wil be really expensive

understand the engine first ... CNG setting will do good for CNG ... petrol setting wil do good for petrol ... there are trade-offs for both settings..

mehran case

for example.. if u set very economical CNG setting, then AC wil work on it ... and if run on petrol, car wil drink it, cuz of less air for it, and advancer difference.

if u set good petrol setting, CNG wont be good at idle, and might nt even start, or if its set to start well, then again it wont be efficient, ur car wil drink CNG like air ....

advice
first decide wat primary fuel u want to set, CNG or petrol .... if its set on CNG, then observe the idle throttle of CNG, mehran doesnt have the tachometer, so u need to closely observe the rpm, mechanic does it on sound and vib of engine ... u need to play with two CNG inputs... for best idle setting .. if those are set by ur mechanic welll (if u really trust the doctor professor mechanic sahab), then observe the ac idle linkage at the left side of carburetor ...

if u dont know wat im talkin abt, juz post pic of engine area from top and i wil tel u whr is it ... then with a philips flat screw driver, unlock the screw... it will increase the idle in case ac is on .... the ac wil work whn rpm it requires are enough ... alsio mention if u have a factory fitted ac or desi fitted one ...

regards

@syedsarosh

thanks alot Sarosh, i did the same .. Same old ignition coil is working now working fine i just changed to a new mechanic who just again changed the point and done something with the timing and distributor setting and my car again smooth with great pick even on CNG now.. i mostly use CNG so i got it tunned my self as per CNG using the two knobs of CNG in engine compartment ..it now starts well on CNG and also giving a gud milage (130km i noted with my last cylinder filled moving in-city).. Please can you tell me how to get point of my Mehran convert to CDI is it Possible..Plz guide me..

[amir_murtaza]

CNG kit for sale
1: LandiRenzo CNG Kit (EFI)

2: 60KG Cylinder
3: nectec Advancer/Emulator
4: Kit never open for repairs
5: Demand Rs: 45,000
6: Call 0333-5184237

[amir_murtaza]

CNG kit for sale
1: LandiRenzo CNG Kit (EFI)

2: 60KG Cylinder

3: nectec Advancer/Emulator
4: Kit never open for repairs
5: Demand Rs: 45,000
6: Call 0333-5184237

[usman505]

so the problem is that ,yesterday i was coming from my friend's home while driving at the speed of 40-50 km/h the car
turns off and red light turns on, on the cng switch on:o dashboard (normally appears when cng is finished) this happened 3rd time in last 2 months .so what can be the problem .electrician change the rellay but on faida:( . now i m confused what to do he said bhai app switch change karain ye current sahe pass nahe kr raha .so plz help me. car is CHARADE 1986 with CB23

REGARDS

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[argtr65]

Conversion switch has gone out of order,get it replaced.

[usman505]

@ argtr65 thanks bro will change the switch inshaallah