please help zlet peeps in the know :D

[brucey106]

last week i had new bcs's(boost solinides) and a new vxr actuator fitted. car was set up on the road not rollers.(85 quid an hour for 1-2bhp was not an option!)

but for a while before i have been hearing a hissing noise? could not find it and was waiting for it to get worse. car still ran well. anyway had vxr actuator fitted and set up last week. today when i got home i lifted bonnet and i found the air leak. lol. there is a small straw type boost pipe going to the back of engine to a sensor like a bcs (vacum pipe?) and it was off? i dont know what pipe it is??? it seems to come from back of engine, up side by side with boost gauge pipe work and i think it goes under air filter(maybe to ecu?) anyway seeing as i have cured this leak, what is this pipe and would it effect boost? would the actuator set up now be wrong? (would there be too much boost or not enough? on the gauge its idling at -15 if this helps (sure it used to be -20! which courtenays said is good)

please please if you can let me know i would be very greatfull :)

thanks

[trickyb]

Hi mate, thats the pipe that comes from the rear boost controll solenoid to the standard dump valve. Has your car got an aftermarket dump valve fitted ???? with the stanadard d/v pipe disconnected (without a spacer fitted inside the standard d/v) the car would have been leaking boost.

[brucey106]

i dont have a dump valve mate. been told no good on zlets.
so would this have affected actuator set up?

[brucey106]

i am worried that now the leak is fixed i might have too much boost of something? suprised courtenays never noticed this?

[ZAF_GSI]

Check under the engine at the back vacume could of come off perhaps?

[brucey106]

Check under the engine at the back vacume could of come off perhaps?

thats the one i found mate :) just wondered if it would effect actuator setting. boost level? been off a while and had vxr act. fitted and set up last week.

thanks so far :D

[ZAF_GSI]

I would of thought boost levels.

[brucey106]

would it now be boosting too much?

[brucey106]

I would of thought boost levels.

thanks for your input mate :)

[dazerc]

what is it boosting to when you floor it ?

[brucey106]

thats hard to say, my gauge is reading 2 psi less so courtenays say. but its boosting to 18 (20psi if gauge was right) but thats from low down in revs, the higher the revs the less boost which is normal i am lead to believe.

[dazerc]

thats hard to say, my gauge is reading 2 psi less so courtenays say. but its boosting to 18 (20psi if gauge was right) but thats from low down in revs, the higher the revs the less boost which is normal i am lead to believe.

That boost level seams normal to me. My car boosts to the same 18-20psi then drops down to 10psi at 6000rpms.

[brucey106]

i could be ok, i was just worried that actuator was set and now boost leak is solved, i would be getting too much boost and would kill my car quickly! i know we cant go much more than 21psi on std turbo. anything after is not good!

thanks for your time mate :D

[aberdeenGSI]

i could be ok, i was just worried that actuator was set and now boost leak is solved, i would be getting too much boost and would kill my car quickly! i know we cant go much more than 21psi on std turbo. anything after is not good!

thanks for your time mate :D


The map on our car will have boost limit and if you hit that limit it will trigger the engine management light to come on and it will go in to limp mode which limits the boost to 5 to 10 psi if i am rite plus the code you will get on tech 2 will be po1106 boost out of range :) so if you do get that turn down the acuator

[brucey106]

The map on our car will have boost limit and if you hit that limit it will trigger the engine management light to come on and it will go in to limp mode which limits the boost to 5 to 10 psi if i am rite plus the code you will get on tech 2 will be po1106 boost out of range :) so if you do get that turn down the acuator

thanks very much buddy :)

brucey:D

[webbo gsi]

if courtenay set up the actuator after fitting it then they use a vacuum tool for this so it will be set up for the map you have! is it cs2? then -15 is out! it should be -20. not sure of cs2 on and overboost levels as its the only one i havent had! 18-19 sounds about right though!

[brucey106]

-15 yes mate, but i will look again tomorrow sometime and check its still same.
its used to be -20 on idle.

cheers
chap :D