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How to Resolve the Yellow Warning Light Issue on a Fiat Punto Evo

Model: Fiat Punto MK 3, Punto EVO, 199, Grandepunto - Years 2005-2018
Part: Warning light – error code

In this video, we see how to resolve the yellow warning light issue on a Fiat Punto Evo multipower running on methane. The engine light remains on despite the YouTuber attempting to reset the light by clearing the error via the OBD port, but upon restarting the car, the light comes back on. This corresponds to error P0191, which relates to the pressure sensor; indeed, the vehicle cannot switch from petrol to methane fuel. Therefore, you need to identify the pressure sensor, remove it, clean it, and see what happens. The sensor is located on the left side of the filter box, at the bottom, inserted within the intake manifold. First, unplug the connector, then remove the side Torx 25 screw and gently pull out the sensor. Do not touch it with your hands! (the YouTuber shows how to do this) and clean it with Fulcron and a contact cleaner spray. Wait for it to dry, clean the connector as well, and reassemble. The light has turned off and the vehicle switches to methane.

Updated on 5 August 2026 by ScegliAuto

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How to Open the Bonnet on the Lancia Y

To open the bonnet on this vehicle, follow these simple instructions: first, open the driver's door and locate the lever positioned just below the dashboard, marked with an image of the vehicle with the bonnet open. Pull this lever towards you until you hear a "click" indicating the bonnet is released. Next, exit the cabin and stand in front of the bonnet to disengage the safety catch and complete the opening. To do this, slightly lift the bonnet, locate the yellow lever underneath, and pull it to the left to fully release and open the bonnet.

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by ScegliAuto

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