karleis6

Kubistar Engine Misfire

Alright, petrolheads, need some guru-level insight! My 2007 Nissan Kubistar, gasoline engine, barely 26k km, is acting up. The check engine light's mocking me, and it's throwing combustion misfire codes. Feels like a bucking bronco when accelerating – major jerking! Engine's running rough as guts at idle, and feels like I'm down on power. Plugs look okay, coils seem to be firing (tested with a multimeter), so I'm scratching my head. Fuel pump seems fine, could it be dirty fuel injectors?

The 2007 Nissan Kubistar is experiencing engine misfire issues, indicated by a check engine light and rough idling, with a noticeable loss of power. Initial checks on spark plugs and coils showed no issues, leading to suspicion of dirty fuel injectors. After professional diagnosis, it was confirmed that injector number 3 was malfunctioning, causing the misfire. Replacing the faulty injector resolved the problem, restoring smooth engine performance.

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4 comment(s)

Sounds nasty. I had similar symptoms on my old Vauxhall Astra. Engine misfiring like crazy, rough idle, the whole shebang. Turned out to be the fuel injectors. Have you checked the injector spray pattern? A dodgy injector can cause all sorts of grief.

Injector spray pattern... interesting. How did you diagnose that? Did you pull them and have them tested professionally, or is there a DIY method I can try?

I initially tried some injector cleaner additive, but that was a waste of time. Eventually, I pulled the injectors and bench-tested them – you can get kits online for not too much. But honestly, unless you're comfortable messing with fuel lines, just take it to a workshop. Diagnosing injector issues without the proper gear can be a real headache.

Thanks for the advice! I bit the bullet and took it to a shop. Turns out, injector number 3 was toast, spraying fuel like a garden hose. New injector, labor, and diagnostic check came to 515€. Ouch! But she's running smooth as butter now. Cheers!

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NISSAN

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KUBISTAR