elisa_scholz1
Winner Diesel Running Lean
Summary of the thread
A 2000 Nissan Winner diesel is experiencing lean running, characterized by reduced power, a check engine light, rough running, and jerking during acceleration. The initial suspicion was a defective injection valve or injector. Suggestions included checking the oxygen sensor, EGR valve, vacuum leaks, and throttle body cleanliness. Ultimately, the issue was resolved by replacing the injectors, leading to improved vehicle performance.
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4 comment(s)
elisa_scholz1 (community.author)
Thanks for the suggestions! I'll check those. But wouldn't a bad oxygen sensor or EGR valve throw different codes? And a vacuum leak... wouldn't that cause other problems too?
annieis7
True, it could be other things, but those are the most common. If it's running that rough and the light's on, I'd say get it to a workshop. Might save you some headache. You can also check spark plugs.
elisa_scholz1 (community.author)
Appreciate the advice! Took it to a shop, and you were right - it was the injectors. Cost me 515€ to replace them. Runs much better now, thanks!
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NISSAN
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WINNER
annieis7
Lean running... hmm. Have you checked the oxygen sensor? Could also be the EGR valve or even a vacuum leak in the intake manifold. Are you sure the throttle body is clean?