Notices
Series I Trouble Shooting This is the place to learn more about or discuss any issues you're having with your RX-8

Help please!!! CEL and 4k redline

Thread Tools
 
Rate Thread
 
Old Jan 21, 2009 | 09:35 PM
  #1  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
Angry Help please!!! CEL and 4k redline

If i press the gas a little before half way the car will redline at 4k and backfire like crazyyy right after eachother nonstop. Then the CEL light starts flashing. I did a CEL test and it kept saying "several rotors misfiring" could it have to do with spark plugs? I also feel loss of power like the engine is struggling to push the air out.
Also the car heats up alot.

Mods on the car:
CAI
cut off cat/resonator.
Stock catback is on.
Reply
Old Jan 21, 2009 | 09:35 PM
  #2  
05rex8's Avatar
sold the 8... :(
iTrader: (7)
 
Joined: Feb 2008
Posts: 4,917
Likes: 0
coils

might as well change plugs, wires, coils altogether
Reply
Old Jan 21, 2009 | 09:37 PM
  #3  
Jon316G's Avatar
Grasshopper
iTrader: (1)
 
Joined: Dec 2006
Posts: 6,779
Likes: 50
From: Streetsboro, OH
Originally Posted by 05rex8
might as well change plugs, wires, coils altogether
Agree
Reply
Old Jan 21, 2009 | 09:40 PM
  #4  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
I only have 24k miles on it. Already bought the plugs. their coming in tomorrow. Anyone else experienced this?
Reply
Old Jan 21, 2009 | 09:42 PM
  #5  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
I keep thinking its because I need to free more air. If i put on my stock intake it's alright.
Reply
Old Jan 21, 2009 | 09:52 PM
  #6  
Jon316G's Avatar
Grasshopper
iTrader: (1)
 
Joined: Dec 2006
Posts: 6,779
Likes: 50
From: Streetsboro, OH
Originally Posted by em1turbo
If i put on my stock intake it's alright.
What aftermarket intake did you have installed?
Reply
Old Jan 21, 2009 | 09:55 PM
  #7  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
Some piece of **** lol. Pepboys CAI crap. Looks the same as the AEM. I don't get why. Its sucking in too much?? Too little??
Reply
Old Jan 21, 2009 | 10:02 PM
  #8  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
CEL also said running too rich. guy said intake is sucking too much air.
Reply
Old Jan 21, 2009 | 10:06 PM
  #9  
05rex8's Avatar
sold the 8... :(
iTrader: (7)
 
Joined: Feb 2008
Posts: 4,917
Likes: 0
well, if it runs fine with the stock intake, then the aftermarket is the problem. if the issue persists with the stock, proceed with coils, spark plugs, and wires....although at that mileage, I would swap them out anyways
Reply
Old Jan 21, 2009 | 10:35 PM
  #10  
zoom44's Avatar
Administrator
 
Joined: Jul 2002
Posts: 21,958
Likes: 115
From: portland oregon
the intake is screwing up your MAF sensor. trash that crap. get pics of it installed first and post them here
Reply
Old Jan 21, 2009 | 10:35 PM
  #11  
Jon316G's Avatar
Grasshopper
iTrader: (1)
 
Joined: Dec 2006
Posts: 6,779
Likes: 50
From: Streetsboro, OH
The position of the MAF sensor (and the ID of the intake tube) is important.
Can't just throw anything on there and expect it to run unless it was designed for the RX8.
Reply
Old Jan 21, 2009 | 10:36 PM
  #12  
05rex8's Avatar
sold the 8... :(
iTrader: (7)
 
Joined: Feb 2008
Posts: 4,917
Likes: 0
Originally Posted by zoom44
the intake is screwing up your MAF sensor. trash that crap. get pics of it installed first and post them here
+1, post pics
Reply
Old Jan 21, 2009 | 11:33 PM
  #13  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
Reply
Old Jan 21, 2009 | 11:34 PM
  #14  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
Reply
Old Jan 21, 2009 | 11:35 PM
  #15  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA

Reply
Old Jan 21, 2009 | 11:35 PM
  #16  
05rex8's Avatar
sold the 8... :(
iTrader: (7)
 
Joined: Feb 2008
Posts: 4,917
Likes: 0
omg, now wonder it doesn't work
look where the MAF position is
Reply
Old Jan 21, 2009 | 11:36 PM
  #17  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
huh?? lol where is it supposed to be?
Reply
Old Jan 21, 2009 | 11:39 PM
  #18  
Jon316G's Avatar
Grasshopper
iTrader: (1)
 
Joined: Dec 2006
Posts: 6,779
Likes: 50
From: Streetsboro, OH
Damn it... my work has the pics filtered.
I can only view attached pics.

Now I have to anxiously wait until I get home to see it.
Reply
Old Jan 21, 2009 | 11:40 PM
  #19  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
http://i433.photobucket.com/albums/q...1turbo/1-1.jpg
http://i433.photobucket.com/albums/q...1turbo/2-1.jpg
http://i433.photobucket.com/albums/q...urbo/33333.jpg
http://i433.photobucket.com/albums/q...o/44444444.jpg
http://i433.photobucket.com/albums/q...1turbo/5-1.jpg

try that?
Reply
Old Jan 21, 2009 | 11:40 PM
  #20  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
and 05rex8 where is the sensor supposed to go? its in there.
Reply
Old Jan 21, 2009 | 11:43 PM
  #21  
05rex8's Avatar
sold the 8... :(
iTrader: (7)
 
Joined: Feb 2008
Posts: 4,917
Likes: 0
I've got ya covered Jon
Attached Thumbnails Help please!!! CEL and 4k redline-1-1.jpg  
Reply
Old Jan 21, 2009 | 11:44 PM
  #22  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
thank you lol. anyone know what's wrong with it? where should the MAF be?
Reply
Old Jan 21, 2009 | 11:47 PM
  #23  
05rex8's Avatar
sold the 8... :(
iTrader: (7)
 
Joined: Feb 2008
Posts: 4,917
Likes: 0
actually the maf may be fine, i guess that's the way it is on the aem
the piping looks too small tho, but it's kind of hard to tell from the pic what size
do you know the ID of it?
Reply
Old Jan 21, 2009 | 11:47 PM
  #24  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
piping is 3" lol filter size is perfect also.
Reply
Old Jan 21, 2009 | 11:49 PM
  #25  
em1turbo's Avatar
Thread Starter
Banned
 
Joined: Aug 2008
Posts: 149
Likes: 0
From: Glendale, CA
what you mean by ID?
Reply


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 01:21 AM.