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  1. [Tigra B] [04-09] Coolant Temp Sensor or Thermostat - Running Rich

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Hi Guys, The engine in my Tigra is the Z18XE. It used to run really lumpy and idle rough. The rough idling was cured (a bit) when i replaced the MAF and the o2 sensor (bank 1). If i rev the engine to 6000 rpm then let the accelerator go back up to resting position quickly, the needle comes down...
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