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Then they changed the AFM with one from another MR2. Took the car back out, and there it was..... full, smooth and hard boost -everytime! 
...turns out it was the controller and not the solenoid on mine. it started with hesitation midway through the revs in 3rd gear. it then started overboosting to 1.4 bar but i wasnt really getting any power? also the starter motor icon would momentarily flash up on the dash? any help would be appreciated.mattymr2 wrote:mines started overboosting today.
si324mr2 wrote:olly it was your airflow meter causing ur car to overboost??
The AFM was screwing up the air/fuel mix and the car was running stupidly rich. Why this caused the turbo to overboost I don't know. It boosts sooooo nicely now, it makes me think it was on it's way for a while.G-force wrote:I've got the exact same problem mate.
is the ebc, wiring and solenoid easy to remove? any how-tos? im a n00b
Just seen your separate thread.mattymr2 wrote:mines started overboosting today.
Do you still have the Stock VSV connected or a seperate boost controller? It is likely to be either:(including any boost controller or vsv)mattymr2 wrote:mines started overboosting today.
, just trying to keep mine at 1barGee Man wrote:I had an over boost problem with mine a while back, all be it a rev3 but stock turbo still.
I had an induction kit and full system exhaust and i could not turn the boost down from 1.25 bar as much as i tried.
I was told my system was that free flowing it would over boost.
Might help your situation mate.
Where did you get your restrictor, and how much did it cost mate??Gee Man wrote:I had an over boost problem with mine a while back, all be it a rev3 but stock turbo still.
I had an induction kit and full system exhaust and i could not turn the boost down from 1.25 bar as much as i tried.
I was told my system was that free flowing it would over boost.
Might help your situation mate.
Where did you get your restrictor, and how much did it cost mate??viper33 wrote:Gee Man wrote:I had an over boost problem with mine a while back, all be it a rev3 but stock turbo still.
I had an induction kit and full system exhaust and i could not turn the boost down from 1.25 bar as much as i tried.
I was told my system was that free flowing it would over boost.
Might help your situation mate.
That sounds exactly like the problem I've got.
As much as I want to help a fellow MR2 owner out I cant due to Imoc adding the site name to the swear filter!!! (Hopefully 
) starts with a T ends in a vSteve-O 2007 wrote:viper33 wrote:Gee Man wrote:I had an over boost problem with mine a while back, all be it a rev3 but stock turbo still.
I had an induction kit and full system exhaust and i could not turn the boost down from 1.25 bar as much as i tried.
I was told my system was that free flowing it would over boost.
Might help your situation mate.
That sounds exactly like the problem I've got.
you get it from a banned site that we cant say on here which is silly as it now means I cant help you properly.
Anyway I can give you a clue
Just wanted to see the filter working..mr2nut123 wrote:Steve-O 2007 wrote:viper33 wrote:
That sounds exactly like the problem I've got.
you get it from a banned site that we cant say on here which is silly as it now means I cant help you properly.
Anyway I can give you a clue
xxxx
Click this link mate.
http://tinyurl.com/q2674b
viper33 wrote:thanks guys
I also have minus 25psi on the boost gauge at idle, does that confirm the need for the restrictor?
When your car is on idle, it will create a vacuum. Mine sits at around -30 on my gauge when off the accel pedal@ pacific works. They took one look at it and said its a mongoose system, and showed me the built in restrictor in the neck of the pipe. I typed in 'what to do to stop overboost on a turbo engine' on google, and it came up with a link to the 'north american subaru owners club'. They were talking about porting the exit route to the wastegate, and cutting back the lip that the wastegate flap rests on 
. I spoke to Luke about this, and he didn't like that idea. So I took the car for him to have a look at, and in 2 seconds flat he spotted that the exit pipe from the acuator wasn't bloked off. He fitted a bloked off tube and boost control was returned . If you are reading this Luke, thanks mate, you're a star .@ pacific works. They took one look at it and said its a mongoose system, and showed me the built in restrictor in the neck of the pipe. I typed in 'what to do to stop overboost on a turbo engine' on google, and it came up with a link to the 'north american subaru owners club'. They were talking about porting the exit route to the wastegate, and cutting back the lip that the wastegate flap rests on . I spoke to Luke about this, and he didn't like that idea. So I took the car for him to have a look at, and in 2 seconds flat he spotted that the exit pipe from the acuator wasn't bloked off. He fitted a bloked off tube and boost control was returned . If you are reading this Luke, thanks mate, you're a star .@ pacific works. They took one look at it and said its a mongoose system, and showed me the built in restrictor in the neck of the pipe. I typed in 'what to do to stop overboost on a turbo engine' on google, and it came up with a link to the 'north american subaru owners club'. They were talking about porting the exit route to the wastegate, and cutting back the lip that the wastegate flap rests on . I spoke to Luke about this, and he didn't like that idea. So I took the car for him to have a look at, and in 2 seconds flat he spotted that the exit pipe from the acuator wasn't bloked off. He fitted a bloked off tube and boost control was returned . If you are reading this Luke, thanks mate, you're a star .