Alright guys, I just rolled 32,000 miles..


After getting off the Eway, coming up to a light and merging onto a 55mph street. I ran the Rpms to 6k and noticed histation so I slowed down then sprinted back up to 6k and gave just a lill more., and it started cutting the fuel off reaching 7-8k the engine light starting flashing, signaling miss fire..

I slowed quicky. light went off and seemed fine. I was like wth is going on... So I kept crusing around not going past 6k freard it would cut out.

Rember I dont race up to high Rpm's .. I later wanted to see if I could bring the rpms up past 6.. So I did, and light started flashing again. Miss fire.. come on whats going on here.. again quicky slowed down and light went off...

I did one more try and same thing,..only thing now the light is always on and still can not go bas 6 k with out miss firing...

I wont be able to get to a dealer till the 26th.. Im on the other side of my state and theres not a mazda dealer for 140 miles...

The car starts fine., Idles fine... runs great but is suffering past 5.5-8k.

Iv had the cat replaced with the TBS.
Other then that no other problems in the life of the 32k miles.

Anyone can give me some input..

Know anyone with the CAN reader so they can pull your code?

No I do not, Im atleast 160 miles from home and in a hotel till the 26 with work..

I've seen something similar in another 8...it was a third stage air intake failure. They continued driving and to the best of my knowledge encountered no serious damage to the engine. They drove from Denver to Salt Lake City to get home

sounds like another CAT

Check for burn marks around the high coils. If that's what it is just stay under 6k :( till they are replaced.

Thanks guys for the help. I'll look at the coils tmw. See what I have.. so far nothing seems wrong just at high RPM's...

Still starts on first grank and idles perfect.

Well as soon as I get to the dealer, I'll let ya all know what my problem really is..

Happened to me early this year. They replace something on the intake. I can't remember what it was. ARB valve or something like that.

sounds like another CAT
I agree. I've had 2 replaced so far.

Read this thread I have going and tell me if it matches your situation..it sure sounds as if we have the same issue..my car is going in on the 28th for this issue to the dealer.

http://www.rx8club.com/showthread.php?t=66470

Anyone can give me some input..

Doesn't sound like you'll cause any damage by continuing to drive it gently, however be aware that the computer records the amount of miles driven with the CEL light on. I'd maybe contact the dealer and book the car in for early next month when you can have the recall work done at the same time. You are aware of the pending recall?

Gomez.

no I havent a clue about the recall....? Clue me in...

^hehe there are about 37 threads about it :D...shor version...they willput a heat shield to prevent possible damage to your wiring and possibly your fuel tank due to heat while idling the car fo rprolonged periods of time.

well guys, check light is still on.. but Im now thinking I had bad gas... Just makes me think... I finaly ran out of the tank I filled up before I left last week. Now 20miles into the new tank Im thinking I should try and raise the RPM's..


So not going WOT yet, just a medium presssure, it went right up with out cuttting out..

Drove around for a while.. then driving back to the hotel jumped on the freeway and tested it out.. Well went up to 6k shifted went up to 7k shiifted went up to 9k, shifted and slowed down.. well well well,., how can it just fix it self..

So my newest guess is that I had a full tank of bad gas that messed her up. but the check engin light is still scarying me


On the other side, I did call service and set up for me to come in.. I told them all whats going on...

I little water will cause that. It saturates the sock around the fuel pump causing a fuel flow restriction. The result is a fuel pressure drop at high revs causing a lean misfire condition. If this is the case you will get a flashing CEL that will coincide with the misfire. If it's just temporary, the CEL goes away. If it last for any amount of time it will change to a solid CEL that will also clear after a number of error free cycles. So, yes, it can heal itself as the water clears from the sock. The code will still be stored in the ECU regardless and can be read on your next service. Sometimes there is still permenent damage to the coils though which can occur whenever lean misfire occurs.

Well guys... The 8 is back..

Things done while in service.

Changed all 4 spark plugs
Oil Change
Flashed PCM
Changed Plug wires
Full circle service
Added coolant to top her off


The cel light went on because #2 rotor missed fired
All plugs in rotor 1 and rotor 2 were changed based on build up from missfire
PCM fashed to lastest


Runs as new.. :)

Thanks for the update. Glad to hear everything worked out for you.


FYI: I'm at 30K and going in for my pitstop on Friday. New plugs going in also :)

Alright guys, I just rolled 32,000 miles..


After getting off the Eway, coming up to a light and merging onto a 55mph street. I ran the Rpms to 6k and noticed histation so I slowed down then sprinted back up to 6k and gave just a lill more., and it started cutting the fuel off reaching 7-8k the engine light starting flashing, signaling miss fire..

I slowed quicky. light went off and seemed fine. I was like wth is going on... So I kept crusing around not going past 6k freard it would cut out.

Rember I dont race up to high Rpm's .. I later wanted to see if I could bring the rpms up past 6.. So I did, and light started flashing again. Miss fire.. come on whats going on here.. again quicky slowed down and light went off...

I did one more try and same thing,..only thing now the light is always on and still can not go bas 6 k with out miss firing...

I wont be able to get to a dealer till the 26th.. Im on the other side of my state and theres not a mazda dealer for 140 miles...

The car starts fine., Idles fine... runs great but is suffering past 5.5-8k.

Iv had the cat replaced with the TBS.
Other then that no other problems in the life of the 32k miles.

Anyone can give me some input..

Are you sure it is a misfire or ping. I was told that if the CEL flashes it means a problem with the cat. :confused:

depends what the cel flashes for. it does flash for a misfire you need to check the codes that are stored.

flashing cel on any car is misfire.

It was the first cel in 20,342 miles from what my PMC read.

ofcourse everything was under warrenty still. The tech guys there are very good on my 8.

"Full circle service" what is that?

So basically they flashed you and give you new plugs...did they give you the new hotter ones?

yeah they put in the New hotter plugs.

Hi I have had the same problem as you and they have replaced my motor twice first at 26k then at 28k :eek:

wow, thats nuts... why did they say you needed a whole new motor....????

Bad compression in the number 2 rotor when hot

ok that spells out my problem to a T, mine started as a cutoff at 6K+ RPM, but only at WOT, it was recorded as misfire on rotor #2. It then began to happen lower and lower, and was eventualy at 3K RPM, it would also stall out, I took it in for the problem.

I told them the car starts, drives and cruises totaly normal, but when you go WOT, it cuts out at various RPM and wont rev past 7K. I can get the RPM up no problem with light throtle, but again any time in WOT the car stumbles and wont rev.

They had it in service for about 5 hrs and said they checked the plugs, made sure I had the current flash and it was fine, they took it for a test drive before and after and couldnt find what I was talking about. I picked it up and within 3 miles the problem was back, and this time the CEL came on and stayed on, solid. So i turned around and droped it off, it was the end of the day, so I had to leave it to be worked on the next day.

I called back the following work day to talk to the tech working on my car, I tried to clue him in to check coil packs, wires and plugs, and also look at the cat, for discoloration or other damage....he said he has and everything looks fine, its still throwing a code for misfire, but they cant find whats going on.

He also said they cant replace any parts on the car unless the service manager OK's it, that includes plugs, cause I tried to tell him that I wanted new plugs with all this misfire going on, those plugs are gonna be covered in crap....

So I called the service manager and he told me that when a car comes in for the same problem 2 times they have to call the mazda corp tech line and talk to them about it. That has to wait untill tommorow (mon).

They kept asking me if I had done any mods on the car, over and over...im totaly stock so no.

Right now the car is throwing misfire in rotor 2 but everything checks out ok. I was thinking bad gas too at one point but I always run Chevron or Shell 93*, so I filled up at a mobil station in town with 93* and the problem still continued.

I want them to change out my plugs and do a compression check, regardless of what they find. Is that out of the question? Or should they be ok with that. oh and I dont want to pay for it cause it should all be warrenty, ive got 106xx Miles.

I was thinking the cat/coils are fried, I have done lots of high RPM driving, keeping the revs over 6k on back twisty roads, as well as WOT high-speed runs, toping out the car, sometimes I work up thru the gears, other times Im just cruising in 5th at 70 and go WOT and then cruise at 150mph, so Im thinking maby the coils/cat are going thru heat damage.

Hi after two motor replacements mazda bought my car back as a lemon