Corolla rough idle fuel injector issue

I'm having trouble with my 2018 Toyota Corolla gasoline engine, it has 133735 km. I think it's a bad fuel injector. Symptoms are hard starting, worse fuel economy, less power, rough idle, and sometimes it stalls. Could it be a dirty injector? Anyone else seen this?

4 comment(s)

Hello, Sounds familiar. I had similar issues with my Corolla. Rough idle, felt like I was losing power, and my gas mileage tanked. Have you checked for any misfires or looked at your emissions lately?

Thanks. I haven't checked for misfires with an OBD reader, but I know incomplete combustion can cause that. What did you do to fix your problem? Maybe it'll help me figure out if our problems are related.

Word. I tried fuel additives at first, hoping that would help. Waste of time and money. I ended up taking it to a shop. Turns out my injectors were clogged. They cleaned one and replaced another that was too far gone. It improved the performance, but it cost me 515€, including labor and parts.

Thanks for the info. I'll make an appointment with a mechanic to check the fuel injectors. A full diagnostic should show how bad the problem is and what repairs I need. Thanks for sharing your experience.

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