elizabeth_stern1

Fiat Novo Lean Running Jerking

I'm pulling my hair out! My 2014 Fiat Novo, gasoline engine, is giving me fits with 226500 km on the clock. The engine seems to be running way too lean, with seriously reduced engine power and a check engine light. The engine runs rough sometimes and jerks like crazy when I try to accelerate. I'm thinking it might be the injection valve or some injector thingy that's busted. What do you guys think? Throttle body maybe? Or could it be related to the mass air flow sensor? I checked the intake manifold; it seems okay visually.

A 2014 Fiat Novo with 226,500 km is experiencing issues with lean running, reduced engine power, and jerking during acceleration, accompanied by a check engine light. Possible causes considered include a defective injection valve, throttle body issues, or a malfunctioning mass air flow sensor. After further investigation, it was confirmed that the problem was due to a defective injector, which was replaced to resolve the issue.

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4 comment(s)

Whoa, that sounds rough! Check engine light is never a good sign. I'm no expert, but could it be bad fuel too? Or a blocked fuel filter maybe? Is it always jerking, or just when the engine is cold? Just throwing some ideas out there, hoping it helps!

Good shout about the fuel filter! I changed it about 30,000 km ago. Can't really say anything about the quality of fuel; I try to get the good stuff. Could a blocked filter really cause all these issues at once, though? And yeah, the jerking seems worse when it's cold, but it still happens when it's warmed up, just not as intensely. Any thoughts?

Hmm, if it's still happening when warm, a blocked fuel filter is less likely, I guess. Honestly, with all those symptoms and the check engine light on, it probably is something more serious with the injectors like you suspected. Maybe time to bite the bullet and take it to a workshop?

Yeah, I reckon you're right. I was hoping to avoid it, but it's probably beyond my basic skills now. I took it to the local garage. Turns out you were spot on. It was, in fact, a defective injector. Had it replaced, and the bill came to 515€. Thanks a lot for the insights and the help!

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FIAT

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NOVO