In the first issue..does the car run poorly at that point?

Second..there are thousands of codes listed in the generic OBDII table..

Can you remove the CANscan and see if the code goes away? this is the first I've heard of this code..but I'm new at this.. ;)

Nah.. I really cant notice any difference in performace other than the smell of fuel getting to me causing me to shift slower.. haha :)

jk..

anyway.. the CANScan tool doesnt have to even be plugged in for me to get the code. I can cause the code to come on at any time. When I see that the CEL comes on, what I usually do is drive home and plug in my CANScan tool at that time to see what code it returns. I know something is wrong but I have no idea what.

Maybe i'll take it elsewhere to a local shop and see if they can find something. I have no idea. I love just spending money.. can you tell.. this is fun.. Rrrrrrr

I am also getting my CZ unit soon, so I can modify the fuel mixture to see if that helps. Maybe after all these mods I am running pig rich and it's causing issues.. I have no idea anymore. I did run some logs with my CANScan tool and I know my AFR is around 11...

Are you saying that the PCM doesnt put out the codes? I thought that Mazda programs all the the codes to appear when certain conditions happen.. is this not true?

The PCM will only read the dedicated code in the file list.

There are several (hundreds.) in a generic code list I keep in my tool box for when I work on other makes.

Rich fuel leads me to a dirty MAF? remove it and spray some good carb cleaner on the main wire. See if it clears this up..

Or you could stop by....You are about 2000 miles from me (damn it)

haha. alright.. I'll drop by tonight :)

Thankx for your help.. Sooner or later this will clear up.. Maybe by then i'll get a new car.. haha.. hopefully it will be cleared up sooner than that.

Well, I've had her back for over 2 weeks now and it seems the plug replacement did the trick. No stuttering or CELs at 8K. Odd, but I'll take it. I only had about 12,000mi on the odo at the time too!

They blamed my driving habits and that I should change.. BS.

If I experience the same problems anytime soon, I'm gonna have em check the plugs first off. How can plugs go bad in less than 12K miles. I just hope nothing is damaged due to the misfiring. If in the future something pops up due to that.. whooa boy, watch out.

Yeah.. I thought my misfire was gone but I think it's still there. It only happens when I drive the car hard shifting from 3rd to 4th gear. If I take it easy I never get the CEL. I also hear loud pops out of my exhaust so I know I am running really rich. After I get my piggy back this week and do some tuning, I am hoping some of these problems go away. I can only be so lucky.

They also replaced the plugs/wires on my car. I thought the problem was gone too until I drove it hard the other night. We'll see what happens. I hope yours is gone.. wouldnt that be nice.. :)

Happened to me again yesterday and today.

Can this have anything to do with flooding? The only thing that I can attribute to all the times it has happened to me is possibly driving the car almost immediately after starting. It happened twice to me after I was late for work and didn't let the car warm up very long and it happened to my wife and I am sure she probably didn't wait long for warm up since she is always running late.

I can't think of any other factors that are consistent in all the times it has happened. Weather was different each time
My CZ Stage 1 was on a few times, off the other time
Three times at high speeds on highway and other times in the 25-35 mph range

I can't explain it.

I too am experiencing the CEL bug. Must be the season for this. Oddly though, mine pulled a P0420 (inefficient cat flow). But changing the plugs looks promising as a 0420 after a fresh car wash happens with crappy plugs. I have no distinguishable misfires, no power loss, no jerks or anything.

We shall see though. Maybe an upgrade in the plug department beyond factory is just what the Doc ordered :)

Hmm.. Tonight I was on a ride and I got a different code this time. It was a P0200. The first ever in the forum I think. I tried searching for this code but no threads came up... I tried looking up this code on google and it says "P0200 Injector Circuit Malfunction". I just had my 30k service and they did clean the injectors as part of the service. Plus, I still smell gas. Anyone have any clues?

I cant repeat my CEL as easily though ever since I installed my CZ unit.

Ok dave, my turn. I just got my car back from the body shop [ diff thread] and I got a huge misfire. I went into the dealership toms river mazda nj and they determined a misfire code all they did is replace plugs and call the mazda tech service, He said all you should do right now is check clear the code Change the plugs and if it ever happens the'll the run a full car diognostics check which they said would take at least a full day. They were friendly and didnt acuse me of shit which is much better service then what you guys seem to get. I'll go driving today and see if i get any new codes but i doubt it since i drove my car hard yesterday. By the way 2500 miles on my baby regular trips to 8500 and 93 octane constantly. Heres what happened I was running from 2-3 and at 8500 shift BAM!!! a huge back fire almost like a blowout. And a second time when i was about to redline in 4th.

Hey... I was only up for one day.. no fair :)

Still no probs 3 days after. Maybe it was a fluke.

Loss of power at high RPM and Low Temp
 

Apparently there are a lot of people having my same problem although I believe several different problems have been discuss in this thread.

My issue arose only when it got pretty cold in the morning here in Austin, TX. Today it was -1C (I think that is <32F) and I did not have time to fully warm the car. I tend to go up high in the RPM and the engine cut out twice above 6000 RPM. I did not notice the engine light come on, and my tank was full with 93OCT gas. After the car has warmed up the problem does not seem to reoccur... it just seems to be something related to the low temperature. I also believe I have the latest PCM flash because I took "her" in more or less a month ago.

The golden rule is "warm her up before you ride her" ;-)

Well.. I am finally to the point where they are going to replace my PCM. They tried replacing my coils (at my expense) but that did not fix the problem. Mazda technical finally said to replace the PCM so they are just waiting on the part to come in. I hope this fixes it. If it does.. well regardless, I am going to try and get my money back for the coils.. that was 300 dollars and it didnt even fix the issue.. I dont pay for them to guess at what the problem is...

Why did you have to pay?

It says later in my post :)

300.... parts, labor and tax.

I asked why you had to pay, not how much?

oh how dumb...

They found out that I had installed an external device because the stock ECU was relaying this information back to the technician. All of the diagnosis work they had to do over the past few days I did not have to pay for, but since they found this they wanted me to pay for the coils.

I still have a warranty though and they are going to pay for the new PCM.

Well.. I got my car back and guess what.. CEL again.. I knew it wasnt the PCM... This all started after I got my 30k service. Maybe now they will listen to me and focus in on that area.. dorks...

I am totally going to get my money back for the coils now. They are just guessing at what the problem is.. They will probably tell me tomorrow they are going to replace the engine...

This is starting to get frustrating... I hate not having a car.

Well. their plan of attack is now to replace almost every part in the car back to stock and see if that fixes the problem. They are first going to start with my hi-flow cat and the cat-back system I have installed. How this relates to a misfire/injector malfunction I have no idea... They seem to have no clue where to begin so they are going to put my car back to stock.. uhhhhhhhhhh The saga continues....

I am having fun with this thread all by myself.. haha.. I guess everyone elses problems have been resolved. My cars tales have not been as fortuante. Tomorrow I am finally going to pick up my car again. They decided to scrap the replacement of the exhaust system and go another direction. Install a 1 1/2 year old TSB for the oil pan in hopes of that fixing my problems...

I have zero faith that this is going to fix the problem, but we'll see....

Well, I have been going thru same shit(4 months). After new plugs, plugs wire, ignition coils and a motor the problem turned out to be a TSB for clearing the E-Shaft Mem. I would tell them to try that if you want my 2 cents.

Damn.. it would have been cheaper for them to just give you a new car.. How much did all of that cost them? Maybe 16,000 in parts/labor?? crazy...

I'll definitely bring that up if it happens again....

Also, which dealership did this? If they want to contact them it might be a good idea if I knew which one it was.