I have posted about this problem before and wanted to know if anyone has found the problem or a solution. To reiterate my problem, after a WOT pull when i lift it feels as though the car has the cruise control on and it remains to crusie at what feels like lite throttle. Its really becoming a problem as when i do track days i am braking against the motor and my brakes get cooked!!! I was wondering if its possible that my utec is interfering in some way though it is setup not to. And it seems that others without utec have the same problem, Does flashing the car with it still attached cause any possibility of interference with the flash?

Here is a link to my maps and logs and such...

https://www.evolutionm.net/forums/sh...highlight=emr8

FWIW Here are my mods and i am running 26psi...

05MR
Ported & Polished Head,
Ported polished & coated header
Ported & polished wastegate,
Coated 10.5 Hot side,
1/2m oversized Supertec Valves & valve job,
Cosworth Head studs and Mitsubishi Stock MLS Head gasket,
supertec titanium retainers,
supertec dual valve springs,
Supertec Valve seats,
Comp 272's,
AEM cam gears, +1 I, -1 E
Ebay O2 coated,
AMS turboback catless w/a wrapped DP,
Walbro 255,
Utec to log with
OPEN ECU FLASH!!!
Apexi Intake,
Evo8 MR BOV,
Stock Plugs,
Greddy Profec Spec 2 @ 26PSI,
Perrin Fuel Rail
Ultimate Racing 900cc Injectors
100 Octane CITGO

 

I actually experienced something similar to this the other day...

Fanged past a 4wheel drive(maybe upto 6krpm) then I stopped at a set of lights, the rpms dropped back to 5000 but hung there for a little while then slowly went back to idle..

it was like the accelerator cable was stuck or something??!?!

 

Yup, its been documented before just not sure whether the "right" people know about it or whether there is a fix.

 

yeah - i definately still have this hang - even after a flash. the magic number is 3krpm. anything above that hangs for me - as soon as its under 3 i feel engine breaking.

i;m actually finding myself shif up - just to engine break which is pretty lame

 

ive got the same thing i have too drop it in neutral to drop the rpms but only on straight line runs though

 

The throttle hang your talking about is on 05+ evo for emission reasons. I dont think anybody in the ECUFlash forum has found how to disable.

 

what blow off valve do you have?,nevermind i see in your mods.i had a similiar problem and when i changed my blow off valve it went away.

 

I got an 05 and mine doenst do this. When it was stock it was fine and is still fine after some mods. Maybe its on late 05's and up???? mine is a early 05 model.

 

in previous threads some have mentioned that its the DVs that are causing us to continue boosting. If it was the DV I don't see how it sticks exactly at 3krpm.

 

We are talking about a completely different type of hang. Trust me. Besides it didnt do it before i flashed it.

 

mine does it when i leave the fan on...like when i have it off...no problem at all.

also you might want to check your throttle body shaft seal. if theres a leak there it may not close all the way.

 

Does it stop around 3-3.5K rpm?? If yes, then its emission control.

 

I am way past even considering it factory form. There is throttle hang and then there is frigin cruisecontol hang. I experience the latter.

 

A friend of mine's 05 has this "feature" too. I don't like it. It's kinda scray when you are at almost redline and it doesn't spin down as you expected.

 

This happened to me the other day. Was heel-toe downshifting coming to a stoplight. Went from 3rd into 2nd. Hit the throttle. Went up to 5000+ rpms...and stayed there. Put the clutch in and braked. Had no idea what the heck was going on. Decided the the engine staying @ 5000 rpms wasn't a good idea. Turned off the car.

Turned the car back on. Problem went away. Car has been running untuned off the ECU for awhile. Am scared that when it gets on a dyno, it will stay @ 7000+ rpms because I haven't gone WOT in a long time.