Which risk increases when elevated fuel temperature in a modern gasoline direct injection (GDI) system encounters extremely high pressures?

💡 Explanation

Vapor lock risk rises because increased fuel temperatures with higher pressures past the fuel pump cause dissolved fuel components to vaporize suddenly via cavitation, leading to lean misfires; therefore, vapor lock is the main concern, rather than increased combustion efficiency.

• In a cryogenic pump circulating liquid helium, which failure results when internal seals degrade?
• Which operational hazard increases when harmonic currents flow within three-phase power transformers due to non-linear loads?
• Which hazard is most increased when an accumulator in a hydraulic system loses its nitrogen pre-charge?
• Which outcome occurs when a hydraulic pump operates with an insufficiently filled reservoir?
• Which outcome occurs within a closed-loop heat pipe when localized overheating drastically reduces liquid surface tension?
• Which failure occurs when chromatic dispersion exceeds acceptable limits in a fiber optic link employing dense wavelength division multiplexing (DWDM)?