4. K8 Running really Bad

K8 Running really Bad

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    Will do the jumper for a quick fix. But if doing that does make the car run ok but with less power then the problem will be one the sensors. What sensors are turned off when doing the TEN and GND jumper?

    I have replaced the VAF sensor but stills does the same
    Theromstat broke as well so thats been replaced.

    Are the sensors easy to replace myself and are they expensive?

    Your help is much appreacted Marco and thx for explaining things you know your stuff. :-)

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    Just tried the Gnd and Ten jumper and still does the same. After putting the jumper across and turn the ing on you hear whats like sensors turning off then all starts fine but still does the same behavours as b4, its sputtering a lot and not liking more revs and when you pull away it hasatates (not good). So im guessing its not the sensors. Any other ideas please. :cry:

    If I drive it like a grannie its fine and does not sputter but cant give it any power :cry:

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    I had a simular problem
    Try unpluging the TPS my problem went away so i changed it.

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    Thx for the help but whats a TPS and where is it?

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  • have a look at Alan's post ;) Hopefully it'll be a quick fix for you too, surprised you're getting no codes though!

    Could be a fuel/air starvation. Clogged air / fuel filter. Drive it here, I'll help ;)

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    cool thx will try that at the weekend.

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    Pulled the error codes myself and the lying garage said there were none. I found 4 they were 12 - 15 - 13 - and 24.

    TP sensor
    HO2S - LH
    HO2S - RH
    HO2S - RH

    Where can I find these to replace them or any help or advise please.

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  • Heh fools! Sort of reasons why I don't trust anyone to work on my car!

    oxygen sensors:
    http://www.fordprobestore.co.uk/store/index.php?cPath=51_74&sort=2a&page=2

    Though I'm sure there's other places sell them too. They're a bit awkward to get at, well mainly the rear one. Some places sell these with connector some just with wires. I'm sure Mark at fordprobestore.co.uk could sort you out.

    For the TPS, best bet is to get a scrapyard one, they're a complete rip off from Mazda/New. There's a chance it might just need cleaned too.

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    Is this the one?

    http://www.fordprobestore.co.uk/store/product_info.php?cPath=51_74&products_id=548

    There is a 3 wire and a 4 wire one. But its does not say heated oxygen sensor just Lambda/O2 sensor 3 wire Higher Quality

    Also on the test it gave 3 errors for the heated oxygen sensors are there 3 or just 2, the LH and RH and are they the same part for both?

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    Are the HO2 sensors in the same place on the mx6 as the mx3 as I have a haynes manual for the mx6?

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    I have changed the 2 heated oxyen sensor and cleared the fault codes took the car for a drive and it was a little better but still not right so I checked the errors again and nothing. Car still running bad so I gave it a few days and tested again getting a fault code on one of the sensors (RH). Could this be a faulty ECU or something else please help.

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