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Seat Cordoba Diesel Mixture Preparation Error

I am experiencing a mixture preparation error with my 2004 Seat Cordoba diesel. The engine power is reduced, the check engine light is on, and it runs roughly. Furthermore, the engine jerks when accelerating and occasionally stalls at idle. Could a defective injection valve be the root cause? I have already inspected the throttle body and intake manifold, and I don't suspect the catalytic converter.

4 comment(s)

I had a similar issue with my Seat Cordoba, although with slightly different symptoms. Did you check the oxygen sensor? A faulty oxygen sensor can cause the engine to run rough and trigger the check engine light.

When you experienced this issue, did you notice any jerking during acceleration, or did the engine stall at idle? Was the check engine light illuminated?

Yes, the check engine light was definitely on. The car was jerking when accelerating and sometimes the engine stalled. I suggest having the injectors checked by a qualified workshop. It could save you a lot of time and effort diagnosing the problem yourself.

I appreciate your input. The workshop confirmed a defective injector was causing the mixture preparation error. Replacement of the faulty injector resolved the issue at a cost of 515€.

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