Question about 1990 Toyota Celica

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Running rich and blowing black smoke

1990 celica 3s-ge i have changed the motor and got the new one out of a mr2. it wont idle properly and blows alot of black smoke and even smells a bit like un-burnt fuel out exhaust . is there any way i can get it to run a bit leaner cos its drinking the gas.thanks

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  • Liam T Dec 12, 2008

    i have a 1990 3sge celica i had the head done and timing belt. when i got car back it was running rich and a constant misfire at idle and under steady revs. i had timing checked by toyota and changed all sensors ,regulator and injectors still overfuelling. any help please email themovieshop@msn.com.

    thanks,

    Liam.

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Could be a number of different things.Fuel pressure relief valve not working,injector pulse too long,Is the air box lid securely fastened and air cleaner clean.Are there no leaks between the air box and throttle body(intake tube).Have you checked oxy sensor.air flow meter may be also possible.Try squeezing the flexible fuel hose enough to allow the engine to run and see if the engine reacts better if it does you have excessive fuel pressure.

Posted on Nov 20, 2008

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