[Robert Watts12]

Just fitted Maptun Stage one and the

Even before I fitted the new ECU occasionally the car didnt seem to get full boost and the gauage only went 1/2 way up the orange, now it occasionally only goes just into the red rather than all the way !!!!!!!!! its just more noticeble now as the extra

is so good.

Anybody any idea ???

Thanks
Rob

 

[Vigge]

I dont recall what car you are driving, besides it being a 9-3. I would help out to give the following info.
-What is the base engine?
-Trionic version or My?
-Any other mods, besides the stage I
-automatic or manual

 

[Robert Watts12]

Vigge

Its a 185bhp SE Turbo
Trionic 5 1999
only stage 1
and manual

Thanks

 

[Vigge]

Originally posted by Rob12:
[qb]Vigge

Its a 185bhp SE Turbo
Trionic 5 1999
only stage 1
and manual

Thanks [/qb][/b]

And the basics

-when was the car in for maintenance for the last time?
-what plugs are you using and how many km are they used?
-how many miles has your DI-casette rolled?
-does your boost gauge rattle or it just wont riese?
-base boost?

 

[Robert Watts12]

Vigge

it was last serviced end of January 2004

plugs are due to replaced next service ie 66K miles.

The DI cassette has done 53 1/2K miles.

No idea of the base boost sorry.

No the gauage it spins round ok just doesnt follow on

Thanks

 

[Vigge]

If you can try a DI casette that is know to work. Borrow from a friend if possible.

Second choice is to get a TECH in your hand.
If this is possible, there a few things that you can check out

 

[philcrombie]

Had similar issues with my Aero

1) DI pack failed - but failure was misfire under high boost - you could feel it offbeat quite clearly - sounds different to your issue.

2) Leak in the small silicone hose going to the boost gauge. Mine had crumbled to the point where it only leaked a tiny amount - enough so the gauge only just went to the end of the yellow. It also messed the boost a little too (not much though)
Mine failed at the little T piece under the throttle body where its probably at its hottest.

 

[burre]

As I am not entirely sure of Maptun, I can say, however, that stage one from Hirsch only goes about 1/3 into the red. That was at 13 psi or 0.9 bar. But yes, do check the other stuff that is already mentioned if it is not high enough.

 

[eriklit]

Well as long as the acceleration is smooth it is probably that the baseboost is too low.

What you can try is to adjust the wastegateactuator a bit (around 2 complete turns inwards should be enough)

erik

 

[Robert Watts12]

Thanks for that

The power is smooth so ill get the other things checked out.

 

[Renars]

Hi,

May be one of those can help:
http://www.saab9000.com/procedures/exhaust/baseboostadj.html

http://www.saab9000.com/procedures/powertr...adaptation.html

 

[SteveN]

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