nicomaier18

Arkana Engine Running Rich

Has anyone experienced their 2023 gasoline Arkana running too rich? I've noticed reduced power, check engine light, rough running, higher fuel consumption, and jerking during acceleration at 232845 km. I suspect a defective injector.

The 2023 gasoline Arkana is experiencing symptoms of running rich, including reduced power, a check engine light, rough running, higher fuel consumption, and jerking during acceleration. The suspected cause is a defective fuel injector. Another potential cause discussed is a clogged catalytic converter, which can increase backpressure and mimic a rich condition. The solution involved taking the car to a workshop, where defective injectors were confirmed and replaced.

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4 comment(s)

I had a similar issue with my BMW 3 Series diesel – reduced power, check engine light, rough running. It was a combination of things. I initially suspected the MAF sensor, but that wasn't it. Did you inspect your air filter or catalytic converter? They could cause a rich running condition if clogged.

Thanks, I checked the air filter, and it's fine. I haven't checked the catalytic converter. Could a clogged catalytic converter cause the engine to run rich? What's the mechanism? I was focused on the fuel injectors. Do you remember the error code for the check engine light?

A partially clogged catalytic converter can increase backpressure, interfering with exhaust expulsion and leading to a higher concentration of unburnt fuel, mimicking a rich condition. My error code was P0172, indicating a rich fuel mixture. Fuel injectors are a valid concern, but get the catalytic converter professionally inspected and get a diagnostic scan to check the error code. With several symptoms, I'd suggest a workshop visit.

Thanks for the catalytic converter and error code advice. I took the car to a workshop. The injectors were defective. The repair, including replacement, cost 515€.

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RENAULT

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ARKANA