answersLogoWhite

0

Poor air/fuel mixture, due to clogged/faulty injector/ bad mass-air,O2 sensor/(fuel pressure-very important on DI engines).

Poor spark- due to fouled/old spark plugs, bad ignition wires/coil.

Poor compression psi, or carbon buildup.

User Avatar

Wiki User

12y ago

Still curious? Ask our experts.

Chat with our AI personalities

ViviVivi
Your ride-or-die bestie who's seen you through every high and low.
Chat with Vivi
ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
DevinDevin
I've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin

Add your answer:

Earn +20 pts
Q: What would cause a car engine not to burn fuel properly?
Write your answer...
Submit
Still have questions?
magnify glass
imp