Evo 3 Boost Problem

[petbeemer]

Right need some ideas chucking my way!
Have a customer with an e3 that i cannot get the boost down to anything like normality,ive disconnected the boost controller and ran the actuator pipe straight to a pressure take off=no difference still 1.8bar.Fitted another actuator thinking the original was faulty=no difference
made sure the waistegate is opening and it is with a good smooth motion!
Re-fitted the controller=no difference
Gauge is an apexi with tell tale but when you drive it,it doesnt feel like 1.8bar although it is giving the symtoms i.e fuelcut(sometimes)
I have now tried everything i can think of apart from fitting another gauge.What next?

[Marshallart]

whats the pipe like from the actuator mate? try swapping that? I had a kink in mine and was making it boost to silly amounts.

If its there when i come up try my dawes device thing on it if ya like. if thats turned to the minimum theres no other option than a dicky gauge really is there.

[GSR Nigel]

Is there a restrictor in any of the boost pipework?

[petbeemer]

Originally Posted by GSR Nigel

Is there a restrictor in any of the boost pipework?

No m8 its all operated via the controller when its on

[Marshallart]

try my pipe when i'm up mate. mines holdin a steady 15psi at the moment. is a bit of silicone pipe with a dawes device in between

[evo3ben]

You have prob already checked this pete but the hose that goes to the intercooler pipe from the boost controller solinoid may have a slight split in it. This will cause serious overboost. Mine split during a journey to Yarmouth last year and i instantly hit 1.8 bar :shock: went like sh*t off a shovel tried it again and hit 1.8 bar again. Went to a friends garage and they had a look at it and put it down to a faulty actuator. Crawled home the next day and checked all the pipes and hay presto!! Boost pipe split where it joins onto the intercooler pipe :-) replaced and all back to normal. Hope u solve it mate

[petbeemer]

Originally Posted by evo3ben

You have prob already checked this pete but the hose that goes to the intercooler pipe from the boost controller solinoid may have a slight split in it. This will cause serious overboost. Mine split during a journey to Yarmouth last year and i instantly hit 1.8 bar :shock: went like sh*t off a shovel tried it again and hit 1.8 bar again. Went to a friends garage and they had a look at it and put it down to a faulty actuator. Crawled home the next day and checked all the pipes and hay presto!! Boost pipe split where it joins onto the intercooler pipe :-) replaced and all back to normal. Hope u solve it mate

Tried all that Ben,had different actuator etc on as well,problem is it doesn't feel like 1.8bar when your driving which points the finger at the gauge

If ya wanna rip my Defi out Pete be my guest mate, I need to re-fit them properly anyway! 8)

[petbeemer]

Originally Posted by whoosh

If ya wanna rip my Defi out Pete be my guest mate, I need to re-fit them properly anyway! 8)

:-) to late :-)

Lol ok mate