Petrol Injection — Quiz

Test your knowledge with instant feedback and explanations.

6 Questions hard Pass mark: 70%

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What this quiz covers

Positive long-term fuel trim means the ECU is…
A characteristic of gasoline direct injection is…
The five-point engine check covers fuel, spark, air, compression and…
A P0300 code indicates…
Why is a flashing check engine light serious?
Intake valve carbon build-up is most associated with…

All values shown are training examples. Real thresholds depend on the manufacturer, engine, temperature and system — always confirm with the vehicle service documentation.

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