need help diagnosing boost

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Jun 2, 2002 | 10:13 PM

Alpine

Thread Starter

Rotary Enthusiast

Joined: Mar 2001

Posts: 761

Likes: 16

From: Walnut, CA

need help diagnosing boost

I have a problem with my sequential system, sometimes during boosted runs through gears, say wot 3rd to 4th to 5th, it will boost fine in 3rd gear, as i shift into 4th gear, the boost rise very slowly and won't go over .4bar, the exhaust note also changes to a deep tone, then i shift into 5th gear, the boost will be fine again.

i remmeber seeing peep having similar problems before, something todo with turbo control actuators? what should i start checking?

thanks,

Randy

Jun 6, 2002 | 12:36 PM

mecman

Senior Member

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Joined: Jun 2001

Posts: 679

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From: Chicago, IL, USA

I am having similar problems. It seems that my primary turbo is working fine but at 4000 rpms or more the secondary turbo is not kicking in.

Anyone work through this before? I am guessing it is time to do a vacuum hose and solnoid test job!

Jun 6, 2002 | 06:25 PM

Dont_Be_A_Rikki

Passenger

Posts: n/a

go non-seq and worry no more plus if you have mods you will really **** your pants.
visit www.dontbearikki.com and go to the how to I did a write up on it and it has pics of what it should look like took 30 minutes or so. never worry about boost spkies again...

-Ryan