mine's perfect. I never really had the idle issue before except for once, and after the reflash my car idles lower (@750 rpm like it should), and the top end feels FAR better. It's smoother, has no hesitation, and feels like it's making more power. I'm really happy with it. I wonder if some cars aren't reacting well to the flash for some reason, or perhaps the dealer doesn't know what they are doing and didn't flash it correctly.

My tech showed me the step by step instructions supplied by mitsu that he was given before he flashed the car, and it looks pretty straight forward and as simple as it can possibly be, so...yeah. Not sure why everyone isn't having the same good results as most of us are having, but for what it's worth my dealer showed me that there are two different versions of the flash and that an update was made to the original. I go the newest version, so perhaps they changed a little something to make it more universally compatible with all the X's. Who knows? I really hope that you guys get it worked out.

 

from what i hear my was not bad compared to most you could just see very little movement in the tack but could not feel it but as soon as you were wide open in the taller gears she stumbled bad felt like it was missing and fuel milage was bad 17 18 at best now i can get 24 25 on hwy no prob and ever so slightley can just bearly feel the studder 99% gone flash made a world of difference but i got no sticker under the hood after the flash

 

You mention you are still having issues post mitsu re-flash. When you look at the work order for you vehicle does it specify that your car was reflashed and specific TSB xx (dont remeber the number) was downloaded? If the TSB download and reflash are not on your workorder and the workorder states the ECU was reflashed then the simple matter is that your ECU was reflashed but the TSB data was not downloaded to the reflash. If the workorder staes the TSB was downloaded and flashed into the ECU then it was, were it not the service department would be in violation of 2 federal laws and I promise no dealers is going to lose his operating liscense just to spite you. On the other hand there is no Federal law that states a sticker must be added under the hood to indicate that a reflash has occured, many dealerships will add a sticker so that tech's in the future have a quick reference under the hood, but since the information is annotated in your vehicles service records there is no need for a under the hood sticker.

Personal testimony with my TSB reflash is that I now have a fairly consistent idle of 650-750rpm vs the 200-750 pre flash. I do have a more linear power curve throughout the rpm spectrum i.e. i dont hit the wall at 5200rmp as I did pre flash. i'll take the word of those in the community who have dyno'd there vehicles post and pre flash, that there has been a power gain. Last significant factor has been a very nice 1.5-2.0 mpg increase per tank of gas. Yesterday I drove from Tampa FL to Mobile AL, with an average speed of 78mph and pulled a trip average of 22.3 mpg not bad increase when my best average preflash was 19.5

 

Well.. Funny how you know nothing about these things until you try to push your car hard after it's broken in..

Then you go online and BANG! Everybody seems to have the same problem and the word ' reflash ' becomes part of your personal dictionary.

Picked my new X up last week, got up to 800 kms and started trying it out.. Fell flat on its face at 5-7 grand and lots of misfiring. Always had a hunting idle, but I assumed this was a turbo characteristic ( first turbo car, so you can convince of anything..)

Right back to the dealer, who were unaware of any problems ( Canadian car, so they haven't sold many yet )

No fault codes showed, but the test drive was eye opening for them. They contacted the tech department and learned of the reflash, and I have a new disc coming from Japan which is supposed to cure the problem. We'll see.

Dealer was great though, the service manager was as concerned as I was, and really wants to get up to speed on the maintenance on these cars. As he says he is in business for a long time, not just a good time!

Gotta say though, right now the car is most unimpressive, and uses huge fuel reserves to boot!

My old 5 speed Altima V6 that I replaced would spank this EVO! Not much bang for the buck for 50 grand out the door!

 

I'm still having the same problems after the stock reflash. I've driven about 800 miles since the reflash. Idle fluctuates but hasn't stalled yet. Almost did today. The car is still having the high rpm hesitation. The SES light came back on today as well. Going back to the dealership tomorrow and see what’s wrong.

 

^ sounds like your car did not get flashed properly

 

LMK what your dealer tells you, sounds similar to my car with the exception my car has died completely... twice.

Thanks for the info. I already checked the work order copy that I recieved the day I brought it in for the flash. It does show the correct tsb and state that the ecu was reflashed by the tech according to tsb ***_*** whatever it was. Got a appt at the dealer next week. Since I started this thread it hasn't stalled again, but sitll has the hard idle fluctiations.

Thanks for the help.

 

I'll be giving my dealer a call as well. I picked up the car last saturday, but noticed the car wasnt fabricated until dec of 07 and is under the recall vin. I dont know how the car handles in the upper rpms, I havent broken the car in enough to take it up that high, but I dont see a problem with my idle. Rests about 750 which seems like the norm for the X. It may have been previously tuned at the dealer, but I'll have to cal and find out. I noticed the car runs very rich. Gas milage sucks but its probably becuase it's still new.

 

Has anyone had their Evo factory reflashed where your VIN # does not fall under those affected?

My car's VIN # apparently is above those listed in the TSB for the factory reflash, yet exhibits the fluctuating idle rpms and has actually stalled on me twice just sitting at a red light. I'm going to call my dealer to see if I can arrange for the reflash, and I'm hoping they won't be difficult.. *sigh*.

 

What do you mean by hard Idle fluctuations? Before my reflash the RPM would jump between 500-1000 constantly. Now after the reflash it jumps from 500 to 750 every once and a while but not all the time.. Never stalled too thank god!

 

i dont think your the only one, it stalled on me, and the clutch feels at times that its slipping like its requires slight pressure wen putting it into first, i only have 440 miles on it so i wont be able to tell if thats a phase, like i still have to break it in.

 

No stalling, no slipping on this end so far, my cars drive train is great, cosmetically the cars has some defects I'll have to take back for repair. I will say one thing though, it's all about timing with this clutch, it involves artwork... I've noticed the slower you go the slower and more evenly your release the clutch (i.e. 1-2). The faster you go the faster you can release the clutch, don't just drop it, release the clutch a little quicker. Think {speed to shift} ratio and you'll get the job done seamlessly.

 

Yeah, the clutch on this car does take some getting used to.. I'll definitely agree with that. Once you get used to it though, it's not so bad. My synchros seem to be meshing near perfectly now once the car is warmed up and I've hit almost 500km's so far. I can't attest to the 5k rpm drop off yet as I'm still in the breaking-in phase, but I have noticed the low rpm stuttering at idle which has lead to two separate stalls.

 

I would only mention that you saw that there was a factory reflash available on the internet as a last resort. My best friend is a service advisor at a nissan dealership, they always frown upon people bringing in printouts from forums.

Tell them the exact symptoms, they usually want to verify the problem before a reflash is even allowed. But if you get a lazy mechanic or a cool service advisor, or if you ***** alot. You can get them to reflash it without verification of the problem.

 

Yeah, exactly my thoughts too. I think the best course of action is to simply bring up the issue as I've experienced it and don't bother mentioning a reflash unless they play clueless/dumb.