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 Low idle RPM

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SUSAllnGap
post Nov 18 2018, 09:54 PM

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From: Penangites
QUOTE(ViktorJ @ Nov 18 2018, 08:36 PM)
Yup, rough idling. Ok will check out fuel injector cleaner too.
Hmm spark plug huh. 30k only wor.
Not sure if its under scheduled maintenance, but will check it out thanks!
Nope, just checked all hoses, all good.
Yeah could be this too. I use 97 Shell. But I heard that there will be carbon buildup regardless of what fuel we use though  sad.gif
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service MAF sensor and throttle body. can spray seafoam intake spray also.

modern car recirculates exhaust back into engine for better complete burn and due to government regulations on exhaust.
it's by design to get dirty and get clogged, especially intake valves, egr and throttle body.
SUSAllnGap
post Nov 18 2018, 09:56 PM

[ Modding with Passion(tm) ]
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From: Penangites
QUOTE(Thrust @ Nov 18 2018, 02:33 PM)
Idle RPM is considered normal if it hovers between 700 - 800 RPM.

Below that, then it is considered low.

You can try to clean the throttle body and MAF sensor. It should restore the idle to normal by doing that.
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LOL, you're one of the few that answered this step correctly.
GG a lot of owners kena buta change spark plugs, change lots of unrelated things due to rough idling from dirty throttle body.

btw, MAF sensor very hard to get clogged. i opened mine before and it's like new !
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