i m now running the AEM EMS, do i have to worry abt this problems?

 

Well my car is at the dealership right now being diagnosed. We'll see what's up.

 

Hmmm,


I get no CEL, but I def get an intermittent stumble at ~4500 rpm. I thought this always threw a cel?

On a side note, would a reflash, such as a custom tune from TurboTrix relieve the problem or is that outside the parameters? I assume if my problem is just fuel cut, the reflash WOULD fix it, right?

Thanks,

FB

 

Check with your re-flash vendor; in most cases you'll likely find the answer is yes. I know the Dyno flash fixes this (saw a post from Al).

re: always ... the only always I've ever encountered is that if you buy a nice car, somebody will always put a ding in it ...

 

Cool thanks, and I already have the ding, heh.

Take care,

FB

 

I got the CEL light and the car's computer logs all the info. when then light comes on. The dealer told me i was doing 76MPH at 3500 RPM and they are aware of the technical service bulletin. Unfortunately, dealer is claiming they are having problems downloading the flash from the internet onto their computers....
FYI, my car only had approx 600 miles on the odometer when this occured

 

I have it too, Goes on afetr 70 miles goes off after 70 miles and so on. I hope Turbo Trixx can help me with this, as I have now read that if I allow mitsu to re-tune my car, I lose thier custom map.

 

webguy3301,

Any news?

 

ok, check this out:
tuesday I got my dealer reflash...great , engine noticeably smoother (didn't miss the XFlash), idle was great, etc.
thursday - the damn SES light comes on, so i was discouraged ..... that damn stumble on 5th gear, ya know
friday - SES light disappears as I started the car, going home from work
GREAT, FANTASTIC!!
In my opinion, the flash works

that's how SES lights get corrected; they disappear after a 10th or so cycle.
this is my experience.
if you get an SES light after the reflash, I suggest you drive it for a bit. It might correct itself, as I have experienced
cheers

 

it'll be back, watch.........................

 

we all know some cars come w/ more power then other.. for instance someone car may be stock and dyno'd at 240whp while another stock evo may be dyno'd at 220whp...

do you think this dealer reflash might help me out if my evo is underpowerd.....

 

Again, I wouldn't do it if my car was running fine without P0300 code. In fact, the dealership won't do a flash for you if you don't have SES light on with P030x code.

 

cokofella, I hope you don't get it again. I have had LESS instances of the p0300 but they are still occuring and in the same fashion.

My update is that I had an issue with my exhaust at the dealership so I am tossing on JanSolo's turboback to take it back to the dealership so they can diagnose the issue again. PM me if you want more details.

 

If you ask me this still sucks. So they dropped the correction to 10 cycles instead of 20. There is still a problem with our cars. They should not be stumbling and its happening on so many Evos that it's a legit problem that needs to be fixed.

 

Cr0mster, I completely agree. Incidentally I haven't had the issue in 2 days now, which is more than I ever went without it since I started having the problem pre-reflash. Still, I am having it looked at regardless because I know it will occur again in the future.

It's almost as if they just reprogrammed it to say "well if it happens X number of times, THEN throw the code, otherwise, just ignore it until X".