P0303: Cylinder 3 - Misfires
The engine of the Renault used in our example is : petrol engine 1.6 16V 95 hp.
We diagnosed the vehicle, a 2005 Renault Kangoo using an ELM327 and our EOBD-Facile software. This Kangoo was losing power, the MIL indicator on the dashboard was lit. Reading of the fault codes confirmed a single fault: P0303. The vehicle electronics detected an ignition problem on cylinder 3. To identify it, check a technical automobile review. Otherwise, cylinder no. 1 is usually next to the flywheel (in our case no. 1 is on the right in the photo), then count up to 3 from the left.
Initially, start with usual basic verifications. Have the ignition plugs been replaced regularly? Is there a connection problem or a breakage? Is the electrical harness cut or worn? In our case, the vehicle had been services and no apparent problem was detected.
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