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lillywerner98

Verso engine jerking and power loss

Hi, I've got a 2012 Toyota Verso, gasoline engine, and it's started acting up. Got about 79k km on it. The check engine light's on, and the engine runs rough. Feels like it's jerking when I try to accelerate, and it's definitely lost some power. Anyone experienced similar? Could it be the ignition coil?

4 comment(s)

lillykrause89

Hey, rough running and check engine light on a Verso could be a few things. The jerking definitely points to misfires. You said ignition coil – that's possible, but have you noticed any difference in fuel consumption? Misfires can also be caused by fuel delivery issues. Maybe a partially clogged or faulty fuel injector? Or even the fuel pump not providing enough pressure?

lillywerner98 (Author)

Fuel consumption seems normal to me. How can I tell if it's a fuel injector problem without ripping everything apart? Is there a way to test it? Could a fuel pump cause this only under acceleration?

lillykrause89

Testing fuel injectors properly usually needs some specialized equipment, like a diagnostic scanner that can monitor fuel trims and injector pulse widths. A failing fuel pump can struggle more under load, like when accelerating, causing the misfires. Given the symptoms, especially the jerking and power loss alongside the check engine light, it's a bit difficult to pinpoint without proper diagnostics. Best to get it checked by a workshop. They can properly diagnose the issue. It might turn out to be something else completely.

lillywerner98 (Author)

Thanks for the advice. Took it to the workshop, and you were right; turned out to be a defective injection valve. Repair cost me 515€. Runs smoothly again.

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