Another Wierd Idle Thread
#1
Registered User
Thread Starter
iTrader: (1)
Join Date: Jan 2007
Location: NyC
Posts: 1,224
Likes: 0
Received 0 Likes
on
0 Posts
Another Wierd Idle Thread
05 GT 6speed
36k miles
MS CAI
New spark plugs
New Ignition Coils
Decarbed 3k miles ago
So, Ive had this wierd idle for aslong as i can remember. When at idle it tend to dip down to the point where the car starts to vibrate a bit more than usual and then it kicks back up. This also happens after a "spirited" drive and the rpms would drop even lower until it kicked back up. I've taken it to the dealer to get checked out but unfortunately could not reproduce the problem.
I recorded the problem on my phone and have linked the video at the bottom. (**** quality)
i have searched and found a bunch of threads where the idle has been cured by changing coils or spark plugs but that has not worked for me.
any help/advice is appreciated.
and yes im a noob.
Video: http://s663.photobucket.com/albums/u...t=VID00003.flv
36k miles
MS CAI
New spark plugs
New Ignition Coils
Decarbed 3k miles ago
So, Ive had this wierd idle for aslong as i can remember. When at idle it tend to dip down to the point where the car starts to vibrate a bit more than usual and then it kicks back up. This also happens after a "spirited" drive and the rpms would drop even lower until it kicked back up. I've taken it to the dealer to get checked out but unfortunately could not reproduce the problem.
I recorded the problem on my phone and have linked the video at the bottom. (**** quality)
i have searched and found a bunch of threads where the idle has been cured by changing coils or spark plugs but that has not worked for me.
any help/advice is appreciated.
and yes im a noob.
Video: http://s663.photobucket.com/albums/u...t=VID00003.flv
#10
Registered User
Thread Starter
iTrader: (1)
Join Date: Jan 2007
Location: NyC
Posts: 1,224
Likes: 0
Received 0 Likes
on
0 Posts
im gonna go with aftermarket wires. ill check out bhr and fluid for prices.
Brettus: when i took my car to get checked out i took it to kevin (Teknics) at wayne mazda. hes a tech there and he knows his stuff and said my engine was strong. and i decarbed my engine recently and i think kevin also decarbed it when i was there. but ill try to get a compression test before im out of warranty just incase.
Brettus: when i took my car to get checked out i took it to kevin (Teknics) at wayne mazda. hes a tech there and he knows his stuff and said my engine was strong. and i decarbed my engine recently and i think kevin also decarbed it when i was there. but ill try to get a compression test before im out of warranty just incase.
#11
NO A/C :(
Join Date: Jul 2009
Location: Silver Spring, MD
Posts: 656
Likes: 0
Received 0 Likes
on
0 Posts
I have a similar issue and the dealer told me it was missing but I guess he means miss fire. He said it needs new spark plugs and ignition coils. It is a 2005 Touring rx8 aero package. I had my motor mount changed but that did not fix it when it drops below 1000 rpm and rises back up on its own. He gave me the estimate and it was $855.00 to change so I'm gona buy a aftermarket ignition setup and have Altered atmosphere install it.
#12
Registered User
Thread Starter
iTrader: (1)
Join Date: Jan 2007
Location: NyC
Posts: 1,224
Likes: 0
Received 0 Likes
on
0 Posts
yeah i received my BHR plug wires yesterday and i plan on swapping them on later tonight.
hopefully that fixes my issue. if not then ill be sad cause ill know the issue is something more severe
hopefully that fixes my issue. if not then ill be sad cause ill know the issue is something more severe
![Frown](https://www.rx8club.com/images/smilies/frown.gif)
#14
You have to drive the car for a few cycles. Also did you re-set the ECU?
your link is not working so.... you could have a bad neutral switch. That causes a hunting idle.
HAve you cleaned the MAF?
your link is not working so.... you could have a bad neutral switch. That causes a hunting idle.
HAve you cleaned the MAF?
Last edited by Razz1; 07-27-2009 at 06:52 PM.
#16
Registered User
Join Date: May 2007
Location: Chicago, IL
Posts: 313
Likes: 0
Received 0 Likes
on
0 Posts
hmm im having the same problem too but mine rattles the plastic outside by the wipers and it gets noisy...I changed the plugs/coils and cleaned MAF but didn't work.
#18
Registered User
Thread Starter
iTrader: (1)
Join Date: Jan 2007
Location: NyC
Posts: 1,224
Likes: 0
Received 0 Likes
on
0 Posts
hmm ill try resetting it after tomorrow and see what happens.
and in my the issue wasnt that noticeable. after "spirited" drives it does it more dramatically. the needle will drop to the normal idle and then immediately drop like 200 or more and then kick back up.
and in my the issue wasnt that noticeable. after "spirited" drives it does it more dramatically. the needle will drop to the normal idle and then immediately drop like 200 or more and then kick back up.
#20
Registered User
Thread Starter
iTrader: (1)
Join Date: Jan 2007
Location: NyC
Posts: 1,224
Likes: 0
Received 0 Likes
on
0 Posts
ive driven other 8's and observed their idle.
none of them feel the way mine does. all the 8's ive sat in feel like the engine isnt even running. but mines is a whole nother story. and this happens every now and then when im just idling in my driveway or parked.
none of them feel the way mine does. all the 8's ive sat in feel like the engine isnt even running. but mines is a whole nother story. and this happens every now and then when im just idling in my driveway or parked.
#25
Registered User
Thread Starter
iTrader: (1)
Join Date: Jan 2007
Location: NyC
Posts: 1,224
Likes: 0
Received 0 Likes
on
0 Posts
i know nothing of premixing or said MMO lol. ill have to search later and read up on it. but from what little ive read there are some people who say their rough idle issues are fixed by premixing. but like i said i have to read into it.
but im still leaning towards mazdas ridiculous richness lol
but im still leaning towards mazdas ridiculous richness lol