selina_shadow4

Seat Arosa engine misfires

My 2003 Seat Arosa with a gasoline engine, currently sitting at 178985 km, has developed a rather annoying issue. I am experiencing combustion misfires. The engine runs rough, and the check engine light illuminated. It also feels like it is jerking when accelerating, and the engine power is reduced. After some investigation, I suspect it might be a defective injection valve. Anyone else run into something similar?

4 comment(s)

Combustion misfire issues are never fun. I had a similar experience with my Arosa not too long ago. Was the check engine light flashing, or was it a constant light? Did you notice any specific conditions when the misfiring was more prevalent?

The check engine light was a constant light. I tried reading the error codes myself and it indicated a cylinder misfire, but I wasn't sure if it was a sensor issue or something more serious. Did you also have the same error code pointing to a specific cylinder?

Yes, the error code pointed to a cylinder misfire. I attempted to troubleshoot myself, but eventually had to concede defeat and take it to a workshop. Their diagnosis confirmed the fuel injector was faulty. Given your symptoms and mileage, I would recommend getting it professionally checked.

Took it to the shop as you suggested. Turns out the fuel injector on cylinder 3 was indeed toast. Replaced it and now the car runs like new again. Total cost was 515€ including diagnosis and labor. Thanks a bunch for your help with this!

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