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Thread: Liana owners & fan club

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    bring it on...

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    Quote Originally Posted by car_bus2008 View Post
    mine is still above middle a little bit and i have driven 185km till now with full time AC.
    Bro full time AC in winters? :O

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    Quote Originally Posted by aatir.sheikh1 View Post
    Bro full time AC in winters? :O
    Winter in Karachi

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    Quote Originally Posted by azyy View Post
    ok, what kind of trouble.....and can ECU be also changed of vvti one?
    bro but if we donot wire up the VVT connectors it will not make any problem.As ECU will not send any command to VVT
    Money differs from an automobile or mistress in being equally important to those who have it and those who do not.

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    Quote Originally Posted by aatir.sheikh1 View Post
    Bro full time AC in winters? :O

    Yepp cant live without AC at daytime and right now fan is also ON.So Fan+Blanket = Winter in Karachi.
    Money differs from an automobile or mistress in being equally important to those who have it and those who do not.

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    Quote Originally Posted by car_bus2008 View Post
    Yepp cant live without AC at daytime and right now fan is also ON.So Fan+Blanket = Winter in Karachi.
    I saw in a thread that you had problem with ur fuel average. So changing the plugs solved your problem?

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    Quote Originally Posted by Kashif.Baig View Post
    Yar i used 10w 40 can i try 10w 30 next time what do u say?

    Perfectly ok. I been using 5W30 Shell HX7

    Sent from my Fire_Plus_LTE using Tapatalk
    Quote Originally Posted by car_bus2008 View Post
    m using Zic 10W-40 since i bought liana last year no engine noise,excellent fuel economy,excellent mileage.
    10W40 is perfectly fine as well.

    Quote Originally Posted by abid110 View Post
    +1

    Insan pagal ho jaey oil ki grading dekhte dekhtr, tstat, engine noise, genuine parts etc etc.. Insam ki life me car k ilawa bohat zaruri kaam hain jinki priority bht zyada hai. Any thing done with a car which is making it work and car takes us amywhere we want without any hassle means its fine and one must be happy.
    If this makes you crazy then you should give up maintenance of cars.

    Quote Originally Posted by devils_smile View Post
    You call maintaining a car scientific? Famous slogans? Non of us were born to maintain our cars on this earth so keep the childish remarks to the side. If you've invested a million rupees in something, atleast take care of it properly.

    I don't know what the issues with the head gasket were that your mechanic worked on for but since you said it yourself that the overheating issues came after that particular work done, the only sensible answer was the engine consuming the coolant and a bad case of repairing work done by the mechanic on the head resulting in the overheating issue. Removing the t.stat is only gonna mask the original problem. I gave you the possible causes of the problems and shared a link so you can read that and understand it. I'm also gonna skip on all the other immature statements you gave. If someone tells you you've done something wrong, look into the matter and don't get all kamikaze.

    Regarding the workshops in karachi, you can use the search bar. Its there for a reason on the main page and in the topics itself. I'm from Islamabad so I know a few here that actually have the proper equipment and tools (and most of them are linked to PW) but guys like saboor may know where to find workshops that have proper tools in Karachi.



    1) Because at that time, I wasn't very well informed about the m13a to diagnose the problem stated below
    2) The engine had started eating up one of the coils every week or so. The problem started when the driver sprayed water+oil in the engine bay while the there was no engine cover over the coils.
    3) M13a was always gonna be in the shadows when compared to the M18. We found a half cut with low miles and swapped the engine+box. Ran the stock ecu initially but later swapped that too.
    Dude check out the previous pages. I have banged my head against the wall trying to explain the "science" in vain.
    The coils were probably being eaten up due to bad plug towers in your M13.
    M18 is a mouth watering prodpect for me too I wish we could get the J20 and the J23 here as well.

    Quote Originally Posted by abid110 View Post
    Just a change of new genuine accelerator cable has resulted in excellent response of my car. A slight pressing of accelerator is meking it a rocket. I was experiencing petrol experience on cng..
    Your accelerator cable had excessive slack as seen in pictures.

    Quote Originally Posted by bilalawan774 View Post
    hello folks,
    i own LXI with FF CNG do din sa bhot missing kar rae hai slow me bund b hujati hai petrol pa b missing karti hai leken missing foran sa nai ati 15 20 min ki drive k bad ati hai or rat me ziada ati hai din me nai ati convert karny sa kbi kbi sai b hujati hai i cant figure kia problem hu sakti hai
    Check your valve clearance. I'm 90% sure about it.
    Death is not the greatest loss in life. The greatest loss is what dies inside us while we live.

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    Quote Originally Posted by car_bus2008 View Post
    bro but if we donot wire up the VVT connectors it will not make any problem.As ECU will not send any command to VVT
    the VVT actuator (cherry blossom ki dibbi on cam) will need to be locked physically as it can start to rattle after a few thousand kms of non usage.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    There needs to be close loop system so that ecu can know the out come for the valve timing change. Othetwise the ecu will keem on hunting for the equilibrium. Or the engine may stalled eventually. VVT harness cant br left open as per the algorithm I believe.

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    Quote Originally Posted by memad View Post
    There needs to be close loop system so that ecu can know the out come for the valve timing change. Othetwise the ecu will keem on hunting for the equilibrium. Or the engine may stalled eventually. VVT harness cant br left open as per the algorithm I believe.
    In the VVT type ECU, it looks for an advanced cam sensor signal (compared to the crank sensor) when the variator works. The variator itself is worked by oil pressure which is regulated by a PWM type oil control valve (VVT oongal in head).

    In case of ECU not having the capability and neither does the engine wiring have provision the engine will never advance cam timing, The problem is that oil also cleans and maintains the actuator, so if its never going to be worked, then bits of nylon can be used to lock it solid so it doesnt vibrate and wear out.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by saboor73 View Post
    JDM vvt ecu look like this
    Liana owners & fan club - 1513572 alto engine swap m13a swift engine installation 20141119 101051
    Forum is Very helpful.
    Can we find this ecu from qabli wala or have to go for new one, any price idea pls. One more thing do we need new wiring etc..

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    Quote Originally Posted by azyy View Post
    Forum is Very helpful.
    Can we find this ecu from qabli wala or have to go for new one, any price idea pls. One more thing do we need new wiring etc..
    Ecu can be bought qabli easily available price depands I think it will be near 10-12k

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    Quote Originally Posted by Xulfiqar View Post
    In the VVT type ECU, it looks for an advanced cam sensor signal (compared to the crank sensor) when the variator works. The variator itself is worked by oil pressure which is regulated by a PWM type oil control valve (VVT oongal in head).

    In case of ECU not having the capability and neither does the engine wiring have provision the engine will never advance cam timing, The problem is that oil also cleans and maintains the actuator, so if its never going to be worked, then bits of nylon can be used to lock it solid so it doesnt vibrate and wear out.
    That's interesting but their came a new question:

    How the cam sensor can bring out the status of each valve on the line to ecu. Or the ecu compares the cam pisition with a fixed algo to determine the valve condition.

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    Quote Originally Posted by memad View Post
    That's interesting but their came a new question:

    How the cam sensor can bring out the status of each valve on the line to ecu. Or the ecu compares the cam pisition with a fixed algo to determine the valve condition.
    Cam sensor just checks cam position valve is not its target it just give feedback to ecu about cam poistion for example if I start using cams design for 180 degree crank design with everything stock engine will go crazy

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    Duplicate post

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    Quote Originally Posted by saboor73 View Post
    cam sensor error type trouble yes ecu can be swapped as well and after ecu swap the car would be killing city ivtec on road
    Wiring should also be changed when changing vvt engine and ecu, and I think wiring is difficult part as for as pak electritions

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    Quote Originally Posted by Xulfiqar View Post
    whoever told you that is out of his mind,

    the tech2 will show you two readings of fuel trims one is called block learn and one is called integrator. In classic terms they are

    block learn = long term fuel trim
    integrator = short term fuel trim.

    the long term's job is to keep the short term near to zero. but a long term too high (more than 15%) means the engine is seeing less fuel due to either starvation or air leak or bad measuring equipment. In such case the engine will balk on acceleration.
    Xulficar bhai plz tell any software setting that reduce the petrol ⛽ consumption of liana. I mean to ask does ecu of some cars allow us to up/down petrol ⛽ settings of that car 🚗.
    Or petrol ⛽ is fix matter only ecu itself manage this ?

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    Quote Originally Posted by gullahmad View Post
    Xulficar bhai plz tell any software setting that reduce the petrol ⛽ consumption of liana. I mean to ask does ecu of some cars allow us to up/down petrol ⛽ settings of that car ��.
    Or petrol ⛽ is fix matter only ecu itself manage this ?
    Modern car have their parameter of fuel set and efi system is designed to self adjust according (weather,altitude) to situation but leaning your fuel AFR can result in more wear of engine

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    Quote Originally Posted by car_bus2008 View Post
    bro but if we donot wire up the VVT connectors it will not make any problem.As ECU will not send any command to VVT
    Ecu have no connection with vvt ecu at specific engine timing modify engine oil direction to alter timing of cam

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    Quote Originally Posted by Xulfiqar View Post
    In the VVT type ECU, it looks for an advanced cam sensor signal (compared to the crank sensor) when the variator works. The variator itself is worked by oil pressure which is regulated by a PWM type oil control valve (VVT oongal in head).

    In case of ECU not having the capability and neither does the engine wiring have provision the engine will never advance cam timing, The problem is that oil also cleans and maintains the actuator, so if its never going to be worked, then bits of nylon can be used to lock it solid so it doesnt vibrate and wear out.
    where actuator is located on engine Assy

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    Today i convinced him to swap with vvt ecu and required wiring........ a well known electrician of efi in i-10, Mr Saeed agreed to do the job.
    I just want to Kill ivtec on motorway

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