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2013 Nissan Pulsar St-L Idle Hunting

YoungMoney
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YoungMoney Apprentice

YoungMoney

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Hey guys,

Quick questions to the engine savvy people, just over two weeks ago i purchased a Dealer X-Demo 2013 Nissan Pulsar ST-L with about 6000 kms on the clock, after a week of driving i started noticing it had a rough idle whilst stopped at traffic lights, i looked at the RPM Tacho needle which was moving between 600 rpm to 800 rpm sometimes eventually it will settle at about 700 rpm but still move ever so slightly, whilst my foot is on the brake i can feel the engine like shaking slightly, as if its about to stall but doesn't. Almost as if it just can find a idle hot spot.

Yesterday I took it to a Nissan service centre and go one of their techs to look at it, he took it for a test drive and said whilst driving, "oh these models just have a rough idle, not much can be done about it" he said he would hook it up to the computer and re set the idle. I drove it home and felt like it was fixed, didn't really see the Tacho jumping around nor feel the shake, however this morning i drove it to work and it came back again. I rang another service centre to get a second opinion and i spoke with a knowledgable person there who said last year Nissan did an upgrade of the ECU but it caused it hunt whilst in idle. Hopefully he can help me so I am taking it to this guy tomorrow however i just wanted to get some quick advice in general.

Should the RPM needle be moving at all? and should i even feel that stalling shake on the engine? To me thats not normal, i do not want a new car with that sort of an issue, it doesn't seem right to me.

Thanks in advance

Jay

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Leroy Peterson Grand Master

Leroy Peterson

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Perhaps some build up on the throttle body?

I would definitely keep this in mind, but doesn't really seem like an issue to cause unstable idle. and I don't think jukes have been having issues with gunk build up.... not yet anyway...

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Ben C34 Grand Master

Ben C34

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It's a new car. It's not an issue to fix yourself.

It's for a dealer. You are doing the right thing by going to a different dealer for second opinion.

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PN-Mad Grand Master

PN-Mad

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Yeah, 106000kms, maybe build up on the throttle, but not 6k kms.

Take it back and make em fix it.

Direct injection motors and EGR motors are terrible for intake and plenum crud.

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