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Thread: Toyota 4efe Poor Fuel Consumption in Corolla ee90

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    Default Toyota 4efe Poor Fuel Consumption in Corolla ee90

    I have 4efe engine in my corolla ee90. It gives me 9-10 km in city and around 12-13 km on Motorway/highway. Can I expect around 16-18 km/l on Highways from a 1300cc engine?

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    Thanks Mr. @saboor73 and specially Mr @ahmedraja1996 for nice suggestions. The ecu of 4efe was scanned and it showed an error code of 33 which was of auto choke and it was not working properly so there was an idling problem too when I started the car in morning. Throttle body was opened for service and noticed that it was cut out from inside so I replaced it and inserted the other one. T.valve was working and the auto fan function is restored now.
    And I noticed some improvements in average. I am still testing now a days and will come up with updates.

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    Thanks Mr. @saboor73 and specially Mr @ahmedraja1996 for nice suggestions. The ecu of 4efe was scanned and it showed an error code of 33 which was of auto choke and it was not working properly so there was an idling problem too when I started the car in morning. Throttle body was opened for service and noticed that it was cut out from inside so I replaced it and inserted the other one. T.valve was working and the auto fan function is restored now.
    And I noticed some improvements in average. I am still testing now a days and will come up with updates.
    Attached Images Attached Images  

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    Good Answer
    Btw do you an efi fuel filter installed? Usually swapped cars don't have this unless it somehow cam with used engine. Without it the injectors get damaged within weeks. I recently asked someone to install it and his mechanic said the filter stainer with fuel pump pickup is the filter and its enough. :what:
    Speed costs money, how fast can you afford to go.

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    I really don't know about the efi fuel filter. I will asked my mechanic to confirm, it is installed or not ?

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    Good Answer
    Here is the pic.
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    Speed costs money, how fast can you afford to go.

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    @Vaqas1 I have asked mechanic about EFI fuel filter and he said that it is installed in the fuel tank, without it the injectors are unable to inject the fuel.

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    I would like to ask the behavior of Idle/auto choke sensor of 4efe. When I unplugged the idle/auto choke sensor grip, the engine raced up and when I plugged the grip the engine become slow down and calm. Is it working likewise or this is an abnormal behavior?

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    Quote Originally Posted by xhzad87 View Post
    @Vaqas1 I have asked mechanic about EFI fuel filter and he said that it is installed in the fuel tank, without it the injectors are unable to inject the fuel.
    Your mechanic is an idiot. You need to learn what it is. Start reading how efi fuel system works. Thts the issue with these swaps. Wait for ur injectors to start leaking.
    Speed costs money, how fast can you afford to go.

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    Suggestions?

    Should I go for efi fuel filter as there will be fitting issues because of its stock fuel pipes.
    Or should I replace the existing fuel filter which is fitted in the fuel tank.

    Thanks.

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    @Vaqas1 I have just put down the fuel tank to sort out the fuel filter condition and cleanliness of the tank. The filter was clean and the tank is also very clean from inside. No dust or rust is found.

    Toyota 4efe Poor Fuel Consumption in Corolla ee90 -1680681
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    The above is not a fuel filter anyways chalatay raho bhai jub masla aiga theekh karwa leina.
    Speed costs money, how fast can you afford to go.

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