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barbaraswift1

Cronos Mass Air Flow Sensor Issues

My 2019 Fiat Cronos with a gasoline engine has high fuel consumption, stalls at idle, check engine light, and smoke from the exhaust when accelerating. It has about 111215 km. I suspect the mass air flow (LMM) meter. Could this be the problem?

Summary of the thread

The 2019 Fiat Cronos experienced high fuel consumption, stalling at idle, a check engine light, and smoke from the exhaust, leading to suspicion of a faulty mass air flow sensor. A similar case confirmed that replacing the sensor resolved the issues. A workshop diagnosis verified the sensor fault, and after replacement, the car's performance improved significantly.

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4 comment(s)

jannikflame1

I had similar symptoms with my Cronos. Check the mass air flow sensor. Could be the culprit.

barbaraswift1 (community.author)

Was it a complete sensor failure, or were there intermittent readings beforehand? Did replacing the sensor fix everything?

jannikflame1

Replaced the sensor and it fixed the stalling and check engine light. I'd recommend a workshop visit for a proper diagnosis.

barbaraswift1 (community.author)

The workshop confirmed the mass air flow sensor was faulty. The repair was 365€, including parts and labor. The car runs smoothly now! Thanks for the help.

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FIAT

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CRONOS