REDEVO08

iTrader: (10)

i am having the same issue as well..

scottatyamaha

iTrader: (21)

Took the words out of my mouth! I have heard everyone talking about this but never had it happen to me yet because I have not gotten on the car all the way. Well tonight I finally put the gas to the floor and it is sputters bad up top. After 5k the car jerked and ran like crap. I could not beleive that Mitsu would release a car like this! What did they do, let a kid fresh out of school tune this thing???? This is very embarassing for Mitsu.

STi2EvoX

The works filter solves this problem completely. All of the Xs buck and hesitate past 5.5k, this is normal. It's just overly rich and is easily corrected.You know what's funny, though? Do you guys remember reading the first motor trend pre-production review in which they mentioned this exact thing hurting the 0-60 times, and that mitsu said that they were aware of the problem and would have it fixed by production. Well, I guess they decided to say **** it, we'll fix it later. Hence, this "supposed" reflash that's coming out "soon." Oh well, BMWs have as many or more problems than the evo seems to have, so I guess it just goes to show that no car is perfect. Every time I take the car in a corner it makes me smile. Every times I look at it in my garage it makes me smile. So I had to buy a works drop in filter to lean the car out enough to run correctly, worse things have happened. They will probably never come out with this "reflash," nor will they ever cover anything under warranty because they don't want to spend money if they don't have to. This matters not to me, because the car is pretty mechanically sound, and aside from the ecu tuning and the notchy tranny, there really isn't anything wrong with the car. Plus, I have a vehicle warranty program in my insurance plan that will cover anything from the stereo to the tranny for 7 years/ 100,000 miles! Ah, now that's peace of mind.

scottatyamaha

iTrader: (21)

I am going to order the filter on Monday. I really did not think it was going to be that bad until I finally floored it tonight and it blew my mind how much it stuttered.

TTP Engineering

iTrader: (465)

Good read. Drove one at the dealer today, noticed the problem right away. Went and drove the owner of the dealership's car and his did it too. I wanted to make sure there wasnt a problem with just the one car.

We will have the ecu fix for this in upcoming weeks. Stay tuned.

KPerez

I am a little confused here after bringing this thread to Sam's (@South Coast) attention. He indicated to me this week that this "problem" was corrected two weeks ago and was available at the dealership. It still is amazing to me that one has to go through this lousy OEM "tune" on a new car! Hopefully when I get mine many of these factory issues will be resolved.

TTP Engineering

iTrader: (465)

I would suspect that if it there was an update, then there would be a TSB and all cars updated.

love9sick

Yea, there is no such thing here. In fact when I talked to the dealer here when I visited it just yesterday they seemed clueless to the entire issue .

I think the cone filter helps just as much. The stutter is still there once in a while and you can still feel the car just completely taper, lose power, and run rich up top. Sorry people but a re-flash from the dealer, a tune, or a piggy back are the only way to really get this COMPLETELY gone

KPerez

These are Sam's words: "They took care of that issue [those in this thread] like 2 weeks ago. All the dealers have the updated ecu flash ".

scottatyamaha

iTrader: (21)

We would know about this by now.

CC16

I'm going to pick up my X tomorrow, I'll inquire to see if they know what I'm talking about, or have heard of any "reflash". Stay tuned.

xtremeboost

iTrader: (39)

I noticed the same issue with my car and concluded it was the wastegate . We did everything I could using a Greddy EBC and nothing worked . For me the issue came about when I began to run 21lbs . At 18.5 lbs I ran a 13.3 at 104 and at 21lbs I ran a 13.3 @ 105 with the car having the problem . I now run a Forge wastegate I made a custom bracket for and that solved my issue 100% . Hope that helps if thats is indeed the same issue you're having ; as it was stated it does seem to be the very same issue .



We should have some wastegates this coming week

love9sick

The better question is if they do have the re-flash...do we want it? I mean it could possible lose all that potential all those tunes we keep hearing about give it. What happens when I get the re flash and than order the Vishnu tune which leans it out...boom to motor or what? Will the gains stack with the re-flash? I just have some of these question that plague me.

scottatyamaha

iTrader: (21)

What about all the vendors that have these cars, what is their take on this? I dont remember hearing them say anything about this. Speak up

element2zz

very true, i wonder if the vendors are aware of this issue...

honestly my car feels slow, and its just not smooth through the rpm's..... and its begining to wear on me. and after i put an exhaust on, the rich mixture is causing my rear bumper to get black sh** all over it...

car is too dam rich! Alot of people are saying the X likes it rich, i disagree completley...no turbo car ive owned likes it too rich... running a bit rich is for saftey leaner A/F make more power, its proven.....you dont want to run too lean and start detonating, but you dont want to run too rich and start missfiring, i believe the x miss fires, the car also pulls alot of timing too.

but im waiting for the perrrin/cobb access port for my X, i dont want to cut any wires...