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

Check Engine Light

Thread Tools
 
Rate Thread
 
Old Aug 21, 2008 | 01:02 PM
  #1  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Check Engine Light

Okayyyyy so I was on the freeway driving to a local Petco when all of a sudden my check engine light flashed 5-6 times. Accelartion felt weak and I couldn't Rev past 6k. Anyone ever experience this? Something I should be worried about? Car is at the dealer atm
Reply
Old Aug 21, 2008 | 01:54 PM
  #2  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Oh man, so this is what I was told. Need new Ignition Coils, wires and spark plugs. Dealer can fix it for about $950.
Reply
Old Aug 21, 2008 | 01:56 PM
  #3  
quazmosis's Avatar
Chode
iTrader: (2)
 
Joined: Dec 2007
Posts: 717
Likes: 0
Or you could do it yourself for around half that price with the help of this forum. Research on where you can get sparkplugs at. (sparkplugs.com) and the coils etc. Lots of venders around here that are so much cheaper than dealerships. YES you can do this yourself.
Reply
Old Aug 21, 2008 | 01:58 PM
  #4  
Jedi54's Avatar
Administrator
iTrader: (7)
 
Joined: Mar 2004
Posts: 22,596
Likes: 3,443
From: The Dark Side
do NOT let the dealership do it.

Sparkplugs = $80 from Charles R. Hill (forum Vendor)
Ignition Coils = $110 (or so) from www.onlinemazdaparts.com
Wires = less then $100, I suggest Racing Beat wires.

2 hours of work and you're done.
There are Do It Yourself threads on how to do this.
Reply
Old Aug 21, 2008 | 02:05 PM
  #5  
alnielsen's Avatar
Registered
iTrader: (4)
 
Joined: Aug 2004
Posts: 12,255
Likes: 8
From: Buddhist Monastery, High Himalaya Mtns. of Tibet
All you need is a 10mm socket wrench to change out the coils. The spark plugs can be a little bit trickier. The take a standard spark plug socket, but getting to them can be difficult. I used a box end wrench to get them started.
Reply
Old Aug 21, 2008 | 02:28 PM
  #6  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Alright thanks a ton guys, gonna look into these DIY threads and check out the online prices.
Reply
Old Aug 21, 2008 | 03:11 PM
  #7  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
So I reviewed a few things online, I have decided to buy the racing beat ignition wires. The Ignition Coils are covered through an extended warranty I bought with the car so that's a relief and as far as the spark plugs... I'm undecided. I'm tempted to try aftermarket but seems like OEM one's are the way to go. Any idea's on which spark plugs I should get? I'm tempted to try the Pulstar spark plugs...
Reply
Old Aug 21, 2008 | 03:13 PM
  #8  
quazmosis's Avatar
Chode
iTrader: (2)
 
Joined: Dec 2007
Posts: 717
Likes: 0
I think the consesus is stick with the OEM ones.
Reply
Old Aug 21, 2008 | 06:48 PM
  #9  
NgoRX8's Avatar
Registered
iTrader: (1)
 
Joined: Oct 2004
Posts: 10,239
Likes: 4
From: CA, Rowland Hts.
get OEM, they don't cost that much.
Reply
Old Aug 21, 2008 | 07:33 PM
  #10  
Old Rotor's Avatar
Registered
 
Joined: Jul 2004
Posts: 2,196
Likes: 0
From: Northern California
Originally Posted by Krazed_Rx8
So I reviewed a few things online, I have decided to buy the racing beat ignition wires. The Ignition Coils are covered through an extended warranty I bought with the car so that's a relief and as far as the spark plugs... I'm undecided. I'm tempted to try aftermarket but seems like OEM one's are the way to go. Any idea's on which spark plugs I should get? I'm tempted to try the Pulstar spark plugs...


Go with the OEM!! STOCK PLUGS...I have tried just about every plug out there in my over 500k+ Rotary driving.

Last edited by Old Rotor; Aug 21, 2008 at 07:36 PM.
Reply
Old Aug 25, 2008 | 12:15 PM
  #11  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Another question if anyone is still reading this thread. I was looking at the paperwork I got from my dealership and in the paperwork it just says "Perform Electronic Engine Diagnosis, test indicates an engine misfire due to faulty ignition coils." After reading this, im debating wether or not its true that I need to replace my coils, plugs and wires all at the same time? I've already bought some plugs and the coils im getting under extended warranty, but should I really bother with new ignition wires?
Reply
Old Aug 25, 2008 | 02:14 PM
  #12  
quazmosis's Avatar
Chode
iTrader: (2)
 
Joined: Dec 2007
Posts: 717
Likes: 0
Another question if anyone is still reading this thread. I was looking at the paperwork I got from my dealership and in the paperwork it just says "Perform Electronic Engine Diagnosis, test indicates an engine misfire due to faulty ignition coils." After reading this, im debating wether or not its true that I need to replace my coils, plugs and wires all at the same time? I've already bought some plugs and the coils im getting under extended warranty, but should I really bother with new ignition wires?

If it was me, I probably would do them all just to be safe. I'd rather have the peace of mind that Everything was replaced and new vs something may still fail and leave me stranded.
Reply
Old Aug 26, 2008 | 01:29 PM
  #13  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Decided to just get all 3 parts replaced. thanks for your input on the last Q quazmosis.
Reply
Old Sep 4, 2008 | 10:35 AM
  #14  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Well I finally got all 3 parts replace, 1 day later my CEL comes back but only when I go past 6k RPM. After a few more minutes the CEL never went away. I read a few other posts about this similar problem, seems like I might need a new Engine. I don't feel much power above 5k RPM and my car has been making odd noises ever since. Any thoughts on this? My car is back at the dealership as I type this.
Reply
Old Sep 4, 2008 | 10:56 AM
  #15  
quazmosis's Avatar
Chode
iTrader: (2)
 
Joined: Dec 2007
Posts: 717
Likes: 0
That's tough to say. If you have a CEL, the dealership should be able to read the code and tell you exactly what it means. The no power above 5K RPM's may be a clogged cat. Keep us posted.
Reply
Old Sep 4, 2008 | 10:56 AM
  #16  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
My car is an 04 BB GT MT with about 24,200miles on it, this might help figure out what my problem is. Hoping its not my engine
Reply
Old Sep 4, 2008 | 10:58 AM
  #17  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Originally Posted by quazmosis
That's tough to say. If you have a CEL, the dealership should be able to read the code and tell you exactly what it means. The no power above 5K RPM's may be a clogged cat. Keep us posted.
This actually might be possible, I've noticed my car's a lot quieter then it used to be. Thought something was wrong with my intake when I got it back, I guess i'll see what they say.
Reply
Old Sep 4, 2008 | 10:59 AM
  #18  
quazmosis's Avatar
Chode
iTrader: (2)
 
Joined: Dec 2007
Posts: 717
Likes: 0
If it is your engine you should be able to get the engine replaced and covered under the 100,000K warrenty.
Reply
Old Sep 4, 2008 | 11:01 AM
  #19  
alnielsen's Avatar
Registered
iTrader: (4)
 
Joined: Aug 2004
Posts: 12,255
Likes: 8
From: Buddhist Monastery, High Himalaya Mtns. of Tibet
I think at 24k miles, I already had 3 cats replaced on my car. I agree with quazmosis, it sounds like the cat is clogged. Also, check the intake for oil.
Reply
Old Sep 4, 2008 | 11:03 AM
  #20  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Originally Posted by quazmosis
If it is your engine you should be able to get the engine replaced and covered under the 100,000K warrenty.
Yeah thank god for the new warranty!
Reply
Old Sep 4, 2008 | 11:05 AM
  #21  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
Originally Posted by alnielsen
I think at 24k miles, I already had 3 cats replaced on my car. I agree with quazmosis, it sounds like the cat is clogged. Also, check the intake for oil.
Hoping the dealership can do this since they have the car atm. Just a little awkward, car seemed fine for 1 day and then it all went downhill again.
Reply
Old Sep 4, 2008 | 11:16 AM
  #22  
I8U's Avatar
I8U
Registered
iTrader: (1)
 
Joined: May 2006
Posts: 1,934
Likes: 0
From: Carolina Beach, NC
Originally Posted by quazmosis
If it is your engine you should be able to get the engine replaced and covered under the 100,000K warrenty.
Actually with the low miles he has on it he should be able to get repaired under the original drivetrain warranty.
Reply
Old Sep 4, 2008 | 01:22 PM
  #23  
Krazed_Rx8's Avatar
Thread Starter
Registered
iTrader: (5)
 
Joined: May 2008
Posts: 1,431
Likes: 1
From: Glendale, California
1st time I went in they said "Found random Misifre and Misfire in cylinder #2...Found all ignition coils to be Arching" Had all Ignition coils replaced along with the wires and spark plugs. Lets see what they tell me now, gonna give them a call soon.
Reply
Old Sep 4, 2008 | 02:29 PM
  #24  
I8U's Avatar
I8U
Registered
iTrader: (1)
 
Joined: May 2006
Posts: 1,934
Likes: 0
From: Carolina Beach, NC
Hey man, I don't want you to get more upset but I have had ongoing ignition problems for as long as I've had this latest motor...30000 miles now. Dealer kept swapping the plugs, wires, and coils about every 6-8k miles under parts warrantry before they decided that my PCM needed to be replaced. Well, within a week of replacing the PCM my misfires were back...I get the occasional high speed misfire but it generally misfires just idling. Only thing I can think of now is replacing the crank angle sensor...that's the only thing I can come up with. I was thinking since they swapped all the parts over from the other motor that the sensor just went bad and threw the timing off a bit. Problem is it's 165 bucks from Mazda and the dealer won't cover mine because I'm way out of power train warranty. I told them they can just keep throwing plugs and coils at it until they decide to save themselves some money and just replace the sensor for a 1/4 of the price.
Reply
Old Sep 4, 2008 | 05:02 PM
  #25  
savedsol's Avatar
Carbonormous
 
Joined: Aug 2003
Posts: 882
Likes: 0
From: Chicago, IL
My guess is your cat or your engine is toast. No hi-flow would probably be a bad cat.
Reply


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


All times are GMT -5. The time now is 07:01 PM.