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  1. MaxB

    Slight Hesitation - Fuel trims?

    My car sometimes has a slight hesitation at around 2-3k and I've been trying to work out what may be causing it. I haven't had a chance to log any data when it's done it yet but here's an example of the fuel trims and o2 sensor values when just idling. Can anyone notice anything out of the...
  2. O

    Clio 2, 1.4-16V 2007 Unstable, noisy Idle with a hissing sound near the engine and increasing RPM even I released the pedal!

    My Renault Clio 2 1.4 16V , 2007 model engine has the following problems. (1) At cold start the the engine shoots up to 1200, when I step on the gas to rev up to 2000 and release pedal, the RPM keeps increasing up from 2500 to 3000 even if my foot is not on the gas. This does not happen when...