on the way home!

[C. J.]

Onthe way home to night after avisit to a watering hole I was having a scooby work out and come of a corner floored it and it got to about 6 thou bang and died for less than a second and then came back ! any Idea's , cel light on good oil pressure :2ponder:

[ScoobyDuck]

bang as in abruptly stopped ?

boost cut i would say

[C. J.]

bang as in abruptly stopped ?


Yes

Hope your right , what would cause it !

[ScoobyDuck]

over boost ..nice cold air, it gets a little bit too much boost and if it stays there for a second or so it will cut, then come back - very violent.

usually if it happens alot then it will need the wastegate duty and/or target boost changing in the map - or could be boost creep.

you could try to provoke it if you think it a problem. normally if you stamp no the throttle at about 4 - 4,500 rpm it will overboost . if it cant catch it, then its that.

If you do the same and hold it in gear and it does it as you get 5000+ etc then it's probably creep.this is where the turbo does its own thing and starts bosoting more and more no matter what you do to control it.

porting of the turbo and wastegate normally fixes it. can be controlled to some extent by mapping.

Steve

[Dyney]

Sounds like Boost/fuel cut :nod:
Cold damp air will cause it. Was it misty?

Do you know what boost it hit?

[C. J.]

1.5 bar and it was 2degrees c
does boost up to 1.65 bar !

[2-jaffacake-tone]

when it went bang and cut out. did your head hit the windsreen :haha:

[C. J.]

when it went bang and cut out. did your head hit the windsreen :haha:

Yes and my pants turned brown plus £ signs went up in front off my eyes :haha:

[C. J.]

did it a gain today . talking to the guy with the white type c ( jim wrx i think !) . he suggested cleaning the 3 port solinoid or replace it . how do i clean the solinoid ?

[Rusky]

Yes and my pants turned brown plus £ signs went up in front off my eyes


:haha: i love that saying............

[Dyney]

Remove the pipes from the 3 port sol and spray brake/carb cleaner in it (easier if you unbolt it)
Connect the test connectors under the dash (can't remember their colour at the mo)
Turn the Ign on.
The fan should pulse on/off and so should the sol :D
Spray some more cleaner in the ports.

Ign off, disconnect the test plugs
Leave the sol to dry and reconnect the pipes (in the right places) ;)

[C. J.]

thank you any one now the colour of the leads !

[Dyney]

The connectors are green :D

[Dyney]

http://www.saxonfields.freeserve.co.uk/Scooby%20Page/ECU%20Diag%20Page.htm#_Connectors
Instructions and pics are for a classic though.

[C. J.]

over boost ..nice cold air, it gets a little bit too much boost and if it stays there for a second or so it will cut, then come back - very violent.

usually if it happens alot then it will need the wastegate duty and/or target boost changing in the map - or could be boost creep.

you could try to provoke it if you think it a problem. normally if you stamp no the throttle at about 4 - 4,500 rpm it will overboost . if it cant catch it, then its that.

If you do the same and hold it in gear and it does it as you get 5000+ etc then it's probably creep.this is where the turbo does its own thing and starts bosoting more and more no matter what you do to control it.

porting of the turbo and wastegate normally fixes it. can be controlled to some extent by mapping.

Steve

its doing it couple of times a week now :(
its over 5000+on revs so how do I port the turbo/ waste gate ?
any pics of one ported :D

[C. J.]

Remove the pipes from the 3 port sol and spray brake/carb cleaner in it (easier if you unbolt it)
Connect the test connectors under the dash (can't remember their colour at the mo)
Turn the Ign on.
The fan should pulse on/off and so should the sol :D
Spray some more cleaner in the ports.

Ign off, disconnect the test plugs
Leave the sol to dry and reconnect the pipes (in the right places) ;)

done this

[2-jaffacake-tone]

what you could do is take off the td05 put your 04 back on i will take the 05 off your hands cheap:thumb: :thumb: :thumb: :haha: :haha:

[C. J.]

what you could do is take off the td05 put your 04 back on i will take the 05 off your hands cheap:thumb: :thumb: :thumb: :haha: :haha:

Let me think :2ponder:




































:nono: :nono: :nono: :waggle:

[2-jaffacake-tone]

bet if i gave helen a glass of wine she would let me:nod: :nod: :waggle: :haha:

[C. J.]

:eek: :eek: Were's the cork !:haha:

[Dyney]

Take the turbo off.
Split the exhaust housing off.
Use a carbide burr/cutter and remove some of the material behind the wastegate penny/flap.
Open the hole slightly and smooth the throut to it :)

[C. J.]

Take the turbo off.
Split the exhaust housing off.
Use a carbide burr/cutter and remove some of the material behind the wastegate penny/flap.
Open the hole slightly and smooth the throut to it :)

Just found a complete turbo porting page may have a go tomorow if tones o.k. with that !:norty: