Fuel injection, ignition, emissions controls, OBD-II and scan tool diagnostics.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the purpose of a fuel pressure regulator?
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Maintains consistent fuel pressure to the injectors independent of engine load and speed- What is the typical operating fuel pressure for port fuel injection?
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30 to 60 psi- What are the effects of a fuel injector stuck in the open position?
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Rich running condition and cylinder misfire- How does sequential fuel injection work?
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Fuel is injected into each cylinder individually at the proper time in the firing order- What is direct fuel injection?
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Fuel is sprayed directly into the combustion chamber under high pressure- What common problem results from a faulty oxygen sensor?
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Engine running either too rich or too lean- What is the primary function of the catalytic converter?
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Converts harmful exhaust gases into water vapor and carbon dioxide- When does the EGR system recirculate exhaust gas?
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During cruise and partial throttle conditions, not at idle or wide open throttle- What does EVAP stand for?
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Evaporative Emissions Control System- What component controls the EVAP purge valve?
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The engine control module via a purge control solenoid- What is a diagnostic trouble code?
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A code stored in computer memory when an emissions system or engine fault is detected- What does a P code indicate in the OBD-II system?
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A powertrain system fault- What does a C code indicate in the OBD-II system?
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A chassis system fault- What does a B code indicate in the OBD-II system?
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A body system fault- What does a U code indicate in the OBD-II system?
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A network communication fault
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