Over boost 2 bar 53sti
#1
Scooby Regular
Thread Starter
Over boost 2 bar 53sti
Today my sti started to over boost and my defi was reading over 2 bar the car has supporting mods and running 360bhp where should I start looking to cure this
#2
Scooby Regular
iTrader: (7)
Join Date: Jun 2010
Location: Rugby
Posts: 798
Likes: 0
Received 0 Likes
on
0 Posts
How does it drive ? I would expect over 2 bar of boost would cause a fuel cut out making it drive really bad. If it's driving fine then maybe your gauge is playing up. Can you plug in a OBDII tool and read actual boost that the ECU sees via the MAP sensor.
#3
Scooby Regular
Thread Starter
It drives ok you can feel it pulling more than usual once I relised what it was doing I stopped driving it on boost on a side note i have noticed that i need to replace a few vacuum hose butt they are all the 3mm ones but there ok at the min
Trending Topics
#8
Scooby Regular
Thread Starter
Yeah had the car since November has be running 1.5 bar but the other day it just started running at 2 bar most of the work was done before i got it and scoobyclinic fitted most of it but there miles from me so I'm waiting to hear back from zen hopefully it can go to them in a week or two and there is a few other bits that i want doing but would be nice to solve this so I can use it
#9
Scooby Regular
iTrader: (6)
Is your car still running the standard map boost sensor or is it fitted with an uprated 3 bar map sensor? If it’s the standard sensor then 1.5bar over a long period of time may have been a little too much. Might be on the way out. Might be best to upgrade & remap.
Also, i'd trust what the Defi gauge says.
Also, i'd trust what the Defi gauge says.
#11
Scooby Regular
iTrader: (6)
Not something I have looked into myself so can not advise where it is and how to check it sorry. Would suggest contacting Scoobyclinic, they might have a record of what was fitted when it was mapped and may have other suggestions of what might be wrong. Give em a ring.
#13
Scooby Regular
Thread Starter
I found one that had perished that I think it went from the two port boost solenoid to the actuator So I sorted that put its still the same i think I need to buy a load of piping and just redo the lot I've ordered so 3mm what other sizes are there ?.
#14
#16
Scooby Regular
Thread Starter
Problem solved pipe that goes into to lower nipple on the turbo had a split so just ordered a few meters of 5mm to replace all of that as well thanks for every ones help
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM