Ask Xulfiqar - An Automotive Encyclopedia

[usmanqadeer.education]

before anything like a new sensor, plot out the sensor and see what its doing. add some fuel to richen the mix and retest - the sensor should respond by going rich, it should equally respond to leaning out when an air leak is made in the inlet manifold.

If nothing happens to the sensor graph then test the wiring to the ECU, if that is ok then you can be assured the sensor is dead or blind. (be wary that engine coolants and silicones will kill a sensor very quickly - make sure nothing like that is there - also make sure your mechanic is not washing the sensor with petrol or WD40 or anything)

I'll try tomorrow in shaa Allah and will update you. Thanks a lot:)

[sehban]

I am planning to buy COOPER TIRES CS5 215/50/17 (Made in USA, Warranty 96,000 kms). Anything negative about these tires please share.

[usmanqadeer.education]

before anything like a new sensor, plot out the sensor and see what its doing. add some fuel to richen the mix and retest - the sensor should respond by going rich, it should equally respond to leaning out when an air leak is made in the inlet manifold.

If nothing happens to the sensor graph then test the wiring to the ECU, if that is ok then you can be assured the sensor is dead or blind. (be wary that engine coolants and silicones will kill a sensor very quickly - make sure nothing like that is there - also make sure your mechanic is not washing the sensor with petrol or WD40 or anything)

Moreover I'm getting this error on cng...if car is driven on petrol then there is no CEL. But as i switch to cng after a few km. It remains visible if i switch back to petrol. Then disappear after resetting ECU.
Comes again in same method after a few kms

[Xulfiqar]

Moreover I'm getting this error on cng...if car is driven on petrol then there is no CEL. But as i switch to cng after a few km. It remains visible if i switch back to petrol. Then disappear after resetting ECU.
Comes again in same method after a few kms

you will get this on CNG as there is no control of fuelling - its just works on suction. On petrol the ECU actually richens and leans the mixture in waves.

You wont be able to solve this unless you get a full lambda kit installation with separate ECU to control engine on CNG.

[Xulfiqar]

I am planning to buy COOPER TIRES CS5 215/50/17 (Made in USA, Warranty 96,000 kms). Anything negative about these tires please share.

They are good tires, but who is the importing agent for cooper tires in Pakistan?

[Xulfiqar]

Sir i need your help regarding Reliable Ac service center in Islamabad other then Abu Baker G-8 wala ..He is Good but i am not satisfied with his work. my Friend take his Alto 660cc 2007 Model Car to Pakistan Car Ac and he Charge 9000/- for service +Gas & Oil etc and 6000/- replacement of Compressor .. As he diagnose minor Leakage in Compressor.. However AC serviced/open first time from 2007... I personally couldn't understand mystery .. Please see Bill in below post ..

He adjust old Compressor in Rupees 1500/- in Total Bill ..

Reason: to posting this Story .. i want to clear my mind that Technically how could Japaneses compressor leaked .. single handed driven car Register in 2013 ..

I also understand that Japaneses car driven 80k before auction etc ..

I hope you understand my words and help me Out .. Thanks a lot Stay bless

I have no idea of Islamabad, but to reply your case of "single hand driven car" - Japanese kei cars are used like Donkey carts in Japan (very badly). and it being an old car you never know whats wrong with it when you buy it.

[usmanqadeer.education]

you will get this on CNG as there is no control of fuelling - its just works on suction. On petrol the ECU actually richens and leans the mixture in waves.

You wont be able to solve this unless you get a full lambda kit installation with separate ECU to control engine on CNG.

Got your point.
On CNG drive can it cause any further damages to engine or to anything else? Like if I keep driving it on CNG with same issue.

[Xulfiqar]

Got your point.
On CNG drive can it cause any further damages to engine or to anything else? Like if I keep driving it on CNG with same issue.

Does your car have cat converter?

[usmanqadeer.education]

Does your car have cat converter?

I'm not sure to be honest as I bought it used.
Mechanic was suggesting to change Exhaust so I guess CAT converter was removed by previous owner possibly.
In case if not, Then what should I do Sir?

[sehban]

They are good tires, but who is the importing agent for cooper tires in Pakistan?

Babar Enterprises are importers and distributors. These tires were introduced in 2015 in Pakistan as per the dealer information. The one he is giving me is manufactured in 0116.

[Fahad.Ayub]

I am planning to buy COOPER TIRES CS5 215/50/17 (Made in USA, Warranty 96,000 kms). Anything negative about these tires please share.

How much does a set cost ?

[driveking]

Xulfi bhai I have a quik question!
My corrolla 11th gens oil change was dur at 25000 kms. Its 25050 now but I have to travel to lahore from islamabad urgently. Should I take the car to lahore or it would damage my cars engine or create pblm in future?? Urgent reply required pls...

|('}__ {Awargi!}
|(_/\_

[aamirahsan89]

Xulfi bhai I have a quik question!
My corrolla 11th gens oil change was dur at 25000 kms. Its 25050 now but I have to travel to lahore from islamabad urgently. Should I take the car to lahore or it would damage my cars engine or create pblm in future?? Urgent reply required pls...

|('}__ {Awargi!}
|(_/\_

Won't make much difference, get it changed there

Sent from my HTC One using PW Forums mobile app

[sehban]

How much does a set cost ?

Rs. 16,500/= per Tire

[rashidkhanmuhammad]

Can this be used as silicon-spray on the car door rubber seals to reduce noise produced by the friction between the rubbers on bumpy roads?

[rashidkhanmuhammad]

This is the pic

[usmanqadeer.education]

I'm not sure to be honest as I bought it used.
Mechanic was suggesting to change Exhaust so I guess CAT converter was removed by previous owner possibly.
In case if not, Then what should I do Sir?

Installed back CAT converter today. Changed the sensor again(Qabli) as the seller was damn sure that he tested.
Issue came back as it is

[NiGhTShAdE]

Thanks....
no there is no considerable increase in pipe's hardness when at normal operating temp. Ok i will replace cap and update....
Btw i have observed slight pressure is present in radiator when you open the cap after letting car cool down...

Update...
Again observed keeping your points in mind, yes there was pressure buildup in radiator. Cap is replaced today, couldn't find the new in 1.1bar so bought kabli. Overheating is completely resolved till now. Slight pressurre buildup is still there.

[saboor73]

Update...
Again observed keeping your points in mind, yes there was pressure buildup in radiator. Cap is replaced today, couldn't find the new in 1.1bar so bought kabli. Overheating is completely resolved till now. Slight pressurre buildup is still there.

Easily available at Suzuki Honda 3s

[NiGhTShAdE]

Easily available at Suzuki Honda 3s

ok i will try 3s ...