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Talisman Mixture Preparation Error

Okay, Talisman gurus, I'm pulling my hair out here! My 2022 Renault Talisman diesel is throwing a "mixture preparation error." I'm getting reduced engine power, the check engine light is mocking me, and the engine is running rough. It's jerking when I accelerate, and sometimes stalls completely at idle. I've checked the intake manifold for leaks, cleaned the mass airflow sensor (twice!), and even had a look at the throttle body. My OBD scanner keeps pointing to a rich mixture, but I can't find the cause. I suspect a dodgy injector, anyone else had this kind of grief?

A 2022 Renault Talisman diesel is experiencing a "mixture preparation error," leading to reduced engine power, a check engine light, rough running, jerking during acceleration, and occasional stalling. The issue is suspected to be caused by a rich mixture, potentially due to a faulty injector. After checking various components, the problem was confirmed to be a dodgy injector, which was replaced, resolving the issue.

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4 comment(s)

Sounds frustrating. I had a similar issue with my Talisman. The check engine light was on and I got rough engine running too. Noticed any difference in fuel consumption?

Yeah, fuel consumption is definitely up. What was the culprit in your case? Was it also the mixture prep?

Yep, sounds very familiar. I was getting that "mixture preparation error" message too. Ultimately, I took it to a workshop. They diagnosed a faulty injector. Get yours checked out, could save you a lot of headaches.

Right you are! Took it to my local shop, and you nailed it – dodgy injector on cylinder 3. New injector fitted, cost me 515€, and she's purring like a kitten again. Thanks for pointing me in the right direction!

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RENAULT

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TALISMAN