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Frequently asked questions about cars and motorcycles
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If the engine struggles to start on the first cold start (indicating that the fuel mixture is too lean), first check that the fuel injection pressure is correct: you can create a bypass at the fuel inlet to the carburettor by inserting a manometer; if the pressure value is within the norm, then determine why the engine management unit cannot enrich the mixture during cold starting: one possible cause could be the oxygen sensor or, more simply, as shown in the video, the earth cable.


Updated on 16 February 2026 by ScegliAuto


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How to Open the Bonnet of a Toyota C-HR

To open the bonnet of a Toyota C-HR, get inside the vehicle and lift the lever with the bonnet symbol located under the steering wheel. After lifting the lever, you will notice that the bonnet rises a few centimetres. Position yourself in front of the bonnet, insert your hand into the gap, and move the small internal lever from right to left, then lift the bonnet. You can keep the bonnet open during maintenance by positioning it on the support rod. To close the bonnet, remove the support rod and let it drop back down.

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