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    Re: M.G ZR 1.4 03 REG Archived Message

    Posted by Darren Bamford on December 30, 2007, 9:34 pm, in reply to "Re: M.G ZR 1.4 03 REG"

    Hi Jamie

    I,m not familiar with what the X431 can do and cannot do. All you can do it give it a go.

    But to reinforce what i have already said , resetting the fuel adaptations will not fix the fueling problem if it is present.

    It will just show up error clearly in the live data PID's i Have already mentioned.

    After the Reset the engine may run poor at idle if there is a fault present with the engine.

    Also this engine uses a speed density method to calculate engine load. The to calculate engine load it uses engine speed , manifold absolute pressure and throttle position.

    when at idle "K series" MAP reading should be a minmum of 37 Kpa any higher at idle will cause it to over fuel. the ECU will correct this via the fuel correction setting normally a value around 95% to 90 % is accepted and will not flag DTC code P0170. anything any lower will trigger the Default flag after completing a drive cycle.

    we could talk all night about what can cause the engine to fuel incorrectly, but for now recheck the car and see what happens....

    Darren........


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