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Thread: 4afe toyota engine fuel problem plz help

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    Exclamation 4afe toyota engine fuel problem plz help

    i alter my kia spectra 2001 with toyota 4afe 1600cc engine all is working good no heat problem engine oil is good filter is clean but iam getting 7-8km/litre why my fuel economy is so bad plz help me urgently as i want to give back engine to mechanic.........and no smoke at all engine power is good abnormal sound

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    is the engine check light wired up correctly and off?(sensors fine)
    7afe would have been a better choice
    spectra is a heavy car(weight more)
    Life is short and very unpredictable just like a Quarter mile .....

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    check light wired up correctly...some mechanic told me about to change fuel injectors and how to check light properly installed or not?

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    may be its more then 4afe mechanic told us then it would be 5 or 6 he was also not sure but his body is very different from 4afe in market they all used the name xe engine efi wala.....i think check light is installed properly...no warning light shown after engine start some mechanic told me about to change the fuel injectors

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    another thing car pick is excellent no smoke not any abnormal sound not taking engine oil...

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    no black smoke or anything at all?
    Life is short and very unpredictable just like a Quarter mile .....

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    No at all mechanic change the injectors and all are good millage is 13-14km

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    G8.congrats on getting such good mileage

    Sent from my GT-I9300 using PW Forums mobile app
    Life is short and very unpredictable just like a Quarter mile .....

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    Quote Originally Posted by ch_ahmed View Post
    No at all mechanic change the injectors and all are good millage is 13-14km
    Price of injectors?
    Btw run it on cng once, U'll be surprised to see the mileage....
    <..If everything seems under control, U r not going fast enough..>

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    Quote Originally Posted by mansoor_qadir View Post
    Price of injectors?
    Btw run it on cng once, U'll be surprised to see the mileage....
    on cng it giving round about 110 km in city on full cylinder 00f 500rs
    any problem plz tell me straight and injector was change by mechanic because of warranty................

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    Quote Originally Posted by ch_ahmed View Post
    on cng it giving round about 110 km in city on full cylinder 00f 500rs
    any problem plz tell me straight and injector was change by mechanic because of warranty................
    On highway mileage i am getting is 220-230km......but on petrol just 9kmpl
    <..If everything seems under control, U r not going fast enough..>

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    yar again mileage issue it done 10km/l with AC and without AC 11-12km/l plz helppppppppppp
    Quote Originally Posted by hash4u View Post
    G8.congrats on getting such good mileage

    Sent from my GT-I9300 using PW Forums mobile app

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    get the fuel injectors checked again!
    Life is short and very unpredictable just like a Quarter mile .....

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    ok iwll,by the way what is the perfect mileage for 5afhe

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    bro performance kaisi hai spectra k original engine ki aur 4afe ki do tel us im swaping too in my spectra
    ikd

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    yar pehly ye btao ky is ka saman kaha sy milta hai sdq sy
    Quote Originally Posted by imrandahar View Post
    bro performance kaisi hai spectra k original engine ki aur 4afe ki do tel us im swaping too in my spectra

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    yar by the way performance is better and kia ky engine ka bta nai sakta ku ky main ny altered li thi honda city 2006 automatic engine ky sath and main ny altered karwi thi from rawalpindi its 16 valve 5afhe (2000 year) and speed,pickup, smoothness is nice and if you are going to altered for better performance contact me for all details its helpfull for you
    Quote Originally Posted by imrandahar View Post
    bro performance kaisi hai spectra k original engine ki aur 4afe ki do tel us im swaping too in my spectra

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    Post pics of ur car and engine bay
    :a

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    Well it is not the injectors all they way. Mechanics would say ti install low CC injectors to save fuel same like installing honda 125 carburetor to save fuel.

    Get scanner hooked up to your system and tell us what is Short term fuel trim and long term fuel trim values. Is your O2 sensor giving correct readings etc. there is no way someone can tell you just like that here goes the problem. its not that simple. remember you live in world where they check your car fuel pressure by blocking fuel pipe with thumb and volume test by seeing speed of petrol flow.

    Mechanics tend to be precise tools but they are not so you better dig it out your self instead of spending money on changing things.

    if you have working O2 sensor good MAF/MAP sensor. Short term fuel trim within + and - 5 % range your car is at ideal situation. other than that you need to dig things out
    93 Accord CB7 (Sold) / 2005 CL7

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