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some problems with fiat punto mk1

  • 09-03-2011 8:22am
    #1
    Mar4ix
    Registered Users, Registered Users 2 Posts: 2,359 ✭✭✭


    Hi folks, looking for some opinions on fiat punto mk1 , 1.1 l. Ecu from 1.2, all keys addapted, to start and run engine. Engine has 105k miles.
    At the moment when it cold, it overfueling... or misfiring .. hard to say, when get heat up, engine run better .... but not as it should be. when it hot, small amount blue/black goin from exhaust when rev from middle to top revs.

    Oil, oil filter and air filter, lambda, temperature sensor, spark plugs, sparkplug wires changed, timebelt with hi accuracy on marks changed, cooling system flushed and filled with proper stuff, two vacuum pipes changed to new.

    Oil perfect... no mayo on dipstick or oil cap, coolant ok, no high pressure in cooling system.

    What next?


Comments

  • #2
    shamwari
    Closed Accounts Posts: 2,142 ✭✭✭shamwari


    Have you an air leak around the inlet manifold? This will cause the O2 sensor to run high all the time and richen the mixture.


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