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poor fuel economy

  1. P0171 Vauxhall Zafira B 1.6

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Hi, P0171 appearing time and again and resulting in very very bad fuel economy, poor pickup at lower revs, etc. The e garage suspected front 02 sensor, got it replaced but code appeared again. I don't think it is the common blocked EGR channels as both LTFT and STFT decrease at higher revs. I...
  2. [Corsa D] [06-14] Management light and P0171

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Hi guys, Another P0171 thread, there are a few around but wanted to add my own experiences and ask for suggestions on next steps diagnostics as I'd rather not throw parts at the fault until I can isolate more issues. So this is on a Corsa D 2011 1.2 Petrol, it's been running poorly, poor fuel...
  3. [Astra Mk5/H] [04-09] Power loss, misfire, hesitation

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    hello all, sorry if this has been posted before but I've had a look round and just can't seem to come to a conclusion as to what is wrong with my car. Last year the car started juddering and the idling was very poor, it sounded like it was pulsing and the fuel economy was also down. So I took...