However, the most common reasons for the engine management light to come on are as follows: 1. Exhaust Emissions. The car’s computer, the Electronic Control Unit (ECU) monitors various systems around the vehicle by use of sensors. The oxygen sensor checks for the correct fuel mixture via the amount of oxygen passing through the exhaust.
Reading ECU Fault Codes. Astra 'G' (MK4) Depending on the year of your Astra G, you may be able to read fault codes yourself if the engine light comes on while driving On the instrument panel, in the same dial as the Tachometer (rev counter). The light has to be on for more than 30 seconds to record a fault code. Fault Code Reading Procedure:-.
However, your Vauxhall Astra might not be willing to accelerate due to some of the following reasons: 1. Clogged Fuel & Air Filter. Problem: The fuel and air filter are two components, which are often cleaned sporadically or with each passing service of the car.
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