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Thread: My Corolla 5AFE is not performing well (petrol)

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    Default My Corolla 5AFE is not performing well (petrol)

    i have changed fuel injector ,FILTER ,iridium plugs and fuel pump as well still the performance is same as before it perform better on gas than petrol
    and drinking petrol like hell



    Need help

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    i have checked it via bridging the two points the check engine light was just blinking without pausing

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    Means No CEL .....!! ECU Didn't have any error codes....!!

    What About Your Sensor Calibration Of TPS And Distributor Timing.........!!

    Check Injectors And Service If Needed And Make Sure Fuel Rail Have Good Maintained Pressure.....

    2nd Hand Kabli Injectors And Fuel Pumps Have No Deen Imaan As We All Know
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Some ECU's Are DUMB And They Don't Show CEL Sometimes Even When Sensor Goes BAD....

    Don't Know What's That But It Happens Sometimes......If It Was Me...I Would Have Check Each And Every Sensor One By One To Make Sure Everything Is In Perfect Working Condition....

    But 1st Check All Other Major Things ....!!

    Also Do Tell What DO You Mean By Not Performing Well???? Its Restricting??? Missing On Petrol.....Or What
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Quote Originally Posted by asad1 View Post
    bought complete fuel pump assembly (qabli) just like new for Rs 2500
    injector for Rs 2000
    fuel filter wasn't clogged
    filter for Rs 600 still have it coz fitted one was not clogged

    Change Fuel Filter......You Don't Know Its Clogged Unless Its Literally STUFFED With GUNK....
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Also You Mentioned Iridium Plugs....Did You Get As Per OEm SPec Or It Stays Iridium And You Install Them???

    If NGK...It Should Be BKR5EIX-11

    If Denso It Will Be iK16

    Plug Should Match Any Of These Numbers As per Brands....!!
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Default

    pick up is not up to the mark as it was before
    i had autolite platinium plugs before now its denso SK20r11 iridium plugs

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    SK20r-11 Seems Fine Here But Its One Step Colder Than Your OEM Specs....

    You Should Have Go For SK16r-11 Instead Of SK20......

    Those Are For 4AFE....

    The Only Diff B/w These Are ik20 Have More Sharp 0.4mm Tip Instead Of 0.7mm Of Sk20....

    In Cold Weather...You Might Notice But Not So Much...........
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Quote Originally Posted by asad1 View Post
    5afe oil chamber capacity ? i m amazed to see that its capacity is just 3 litre
    3 ltr ???
    Recently put 3.25 ltr in my rolla ...

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    Read full thread and get v good info
    Keep it up

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    Quote Originally Posted by Awais_jan View Post
    3 ltr ???
    Recently put 3.25 ltr in my rolla ...
    You Might Have Empty Oil Filter......!! Make Sure You Don't Overfill It....Check The Dipstick 1st Time In Morning While Car Standing Stationary On Flat Surface..
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    I can see black carbon in tail pipe what can be the problem is the car running rich ? As I m.getting bad average as well plz do guide me
    Do u think.I.need to clean any sensor?

    Sent from my HTC Sensation 4G with Beats Audio using PW Forums mobile app

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    Ser_Gtr brother
    what should be the average of 4efe
    its 100% ok engine performance wise.no oil reducing.touching 180 on petrol
    Came orignal in my 93 jdm corrola
    giving 8km/litre
    Suzuki jimny , Suzuki Cultus ,Suzuki Baleno

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    Quote Originally Posted by asad1 View Post
    I can see black carbon in tail pipe what can be the problem is the car running rich ? As I m.getting bad average as well plz do guide me
    Do u think.I.need to clean any sensor?

    Sent from my HTC Sensation 4G with Beats Audio using PW Forums mobile app
    Yes It Means Its Running Rich On petrol And You Should Inspect Your O2 Sensor 1st......Beside That Check TPS For Proper Readings On Zero Throttle And WOT...

    Run Diagnosis And Check If There's Any Error Code Shown By ECU
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Quote Originally Posted by MUNZALEEN View Post
    Ser_Gtr brother
    what should be the average of 4efe
    its 100% ok engine performance wise.no oil reducing.touching 180 on petrol
    Came orignal in my 93 jdm corrola
    giving 8km/litre
    A Good healthy Engine Should Be Doing Atleast 10-11Km/L Considering Every Sensor Is Working As It Should....! That's For AUTO Transmission As They Came Mostly With A/T Which Is Quiet A Long Ratio Type
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Quote Originally Posted by SER_GTR View Post
    A Good healthy Engine Should Be Doing Atleast 10-11Km/L Considering Every Sensor Is Working As It Should....! That's For AUTO Transmission As They Came Mostly With A/T Which Is Quiet A Long Ratio Type
    Farrukh bhai average ko to sarey hi ro rahey hein? What do you think the main problem is with engines running on petrol? What I have seen mostly is the OP described just above that car is running rich. My B13 was also running rich on fuel. Mostly I see cars running rich on fuel. Why is that ? Please can you explain why cars run rich on fuel ? What should we inspect #1 ?
    success is the ability to go from one failure to the next without any loss of enthusiasm

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    Quote Originally Posted by SER_GTR View Post
    A Good healthy Engine Should Be Doing Atleast 10-11Km/L Considering Every Sensor Is Working As It Should....! That's For AUTO Transmission As They Came Mostly With A/T Which Is Quiet A Long Ratio Type
    Its manual
    All sensors ok
    no engine check light
    i think it must reach to 15km/litre with a light foot
    Suzuki jimny , Suzuki Cultus ,Suzuki Baleno

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    Hardly getting 6km/litre


    Tell me the way to check oxygen sensor 1 can just see 1 wire on it

    Sent from my HTC Sensation 4G with Beats Audio using PW Forums mobile app

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    gud noon everyone. I have got corolla 1990 equipped wid 5AFHE. Can nybody tell me that if O2 sensor is attached to exhaust pipe but left unwired then how can it be wired with ECU. The sensor is 4 wire O2 sensor having 2 black wire,1 White and 1 Blue.

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    by just looking at the exaust tip no one can judge by seeing the carbon deposit's that the Fuel mixture is running rich it can only bee checked through the Air Fuel Ratio Meter at which certain rpm and load what is the AFR ..

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