Rough Idle. Things I have done so far
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Rough Idle. Things I have done so far
Replaced Plugs Wires and coils. Cleaned MAF sensor. Shot TB Cleaner through the maf sensor hole to the TB. Will take off TB completely Tomorrow. Also next is cleaning the ECCENTRIC SHAFT SENSOR. Any Other Ideas?? the Car Basically Starts fine and everything it is just when the rpms start getting close to normal Idle when the car is warm it starts shaking really bad. The steering wheel rattles amongst other things. The needle sometimes "very rarely will drop to 500ish rpm" then climb back up.
Yes I have used the search button. Should I post a video?
Yes I have used the search button. Should I post a video?
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Also I want to add acceleration seems fine. It is pretty smooth accelerating 0-60 it is just the idle is not good. I also tried the 20 pump Brake reset to see if that would help.
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It will hold steady most of the time when holding steady it vibrates. Also If I rev it and then let go it will drop down then dip a little bit more then slighty go back up and then vibrate. Yes the oil gauge did sweep.
2004 Rx8 35000 Stock MT
2004 Rx8 35000 Stock MT
Last edited by Erizo; 09-16-2013 at 09:52 PM.
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I am thinking that just because I shot the TB fluid through the hole instead of actually taking it off and cleaning it there is no real way that I know that it is clean..
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But really, at that mileage I would doubt the TB is the culprit. It can also be motor mounts, low fuel pressure (failing fuel pump) or clogged injectors.
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Vibration with the idle moving around = combustion problem (vacuum leak, O2 sensor, MAF, ignition failure, compression loss, etc....)
Sounds like your motor mounts are going because your idle is stable, even if it dips a bit more than normal.
Cleaning the throttle body to smooth out a rough idle due to motor mounts is kind of like washing the dump truck to see if it drives down the unpaved road any smoother
#12
Check the main ground wire plug (the white one, I think, near the front). If it's only grounded through the starter it might idle a bit rougher. Yours sounds more extreme than that though.
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