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isabellakoch3

Tundra Hybrid Misfire

I'm having a perplexing issue with my 2023 Toyota Tundra Hybrid. It has 99446 kilometers on it and has begun exhibiting symptoms of combustion misfires. The engine runs rough, the check engine light is on, it jerks upon acceleration, and there's a reduction in engine power. I suspect a defective injector. Has anyone experienced similar difficulties, and what diagnostic procedures would you recommend?

4 comment(s)

annalehmann1

Rough engine, eh? Sounds familiar. I had something similar going on with my Tundra. Check engine light was on, throttle response was terrible, and it felt like I was driving through molasses. Have you scanned the error codes? Could be a cylinder misfire, which might point to spark plugs or even an ignition coil issue. But yeah, injectors are a possibility too. Did it happen suddenly?

isabellakoch3 (Author)

Yes, I did scan the error codes, and they indicate cylinder misfires across multiple cylinders. You mentioned spark plugs and ignition coils; were those components implicated in your situation, or was the fuel injector the root cause? Also, the degradation in performance was not instantaneous but rather progressive over a period of approximately one week.

annalehmann1

Progressive, huh? Mine was more sudden, but similar symptoms. I messed around with changing the spark plugs first 'cause it's cheap and easy, but no dice. Turned out it was a dodgy fuel injector. Honestly, with it being progressive, and throwing codes for multiple cylinders, it’s probably beyond a simple fix. I'd say get it to a workshop and have them properly diagnose the fuel system. Could save you a lot of headache and prevent further damage.

isabellakoch3 (Author)

I appreciate the additional insights and the recommendation to seek professional diagnostic services. Based on your experience and the escalating nature of the symptoms, I will schedule an appointment with a qualified technician to evaluate the fuel system. The workshop confirmed that the repair was a defective fuel injector, which cost me 515€.

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