| ASE A-8 Engine Performance Certification Practice Answers |
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Answer A is wrong. The ECT sensor input is used for idle speed calculations. Answer B is correct. The EGR is a valve that recirculates exhaust. Answer C is wrong. The IAT sensor input is used for idle speed calculations. Answer D is wrong. The TPS is used for idle speed calculations. |
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Answer A is wrong. A clogged catalytic converter will result in a lack of engine power. Answer B is wrong. A vacuum gauge can be used. If the needle drops steady during acceleration there's a restriction in the exhaust or intake. Answer C is correct. Both technicians are correct. Answer D is wrong. Both technicians are correct. |
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Answer A is correct. The P stands for powertrain. Answer B is wrong. The 0 stands for a generic code and a 1 stands for manufacturer specific. Answer C is wrong. Technician A is correct. Answer D is wrong. Technician A is correct. |
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Answer A is correct. As vacuum decreases fuel pressure increases. Answer B is wrong. A restricted fuel line results in a rich fuel condition. Answer C is wrong. Technician A is correct. Answer D is wrong. Technician A is correct. |
20. Answer A is wrong. It is used by the PCM for fuel injector timing. Answer B is wrong. The distance is vital. The further away the weaker the signal. Answer C is correct. Both technicians are correct. Answer D is wrong. Both technicians are correct. |