Boost problem

[dsmulla]

Ok guys, I have been trying to fix this problem for the past week but I haven't gotten anywhere.

My car would only boost to about 10 psi and it would take a lot of effort to get there. I checked the wastegate arm and reconnected it to the turbo with some tension so it keeps the wastegate closed. I thought that would fix the problem but it didn't however, I do get boost around 3000rpm which is what my turbo is rated at and responds faster now. It still goes to about 10 psi though. Now I have tried doing a boost leak test but my boost gauge only reaches up -10 vaccum and it doesn't go higher.

What do you guys think could be causing the boost leak test to fail like that? Is it the wastegate flapper still open slightly?

P.S When I get on it, I can hear the leaks. I also tightned up all the couplers and I can still hear the leaks.

Thanks in advance,
Osman

 

[oldman]

Oh also, I forgot to mention, my CEL light came on a week ago. It give P01108 IAT sensor malfunction, I cleared it and it never came back on again. Well I haven't really driven the car so.....
Now as I understand, the IAT sensor is within the MAF itself right?

That is correct but it seems like your IAT sensor is functioning properly.

 

[dsmulla]

I am going try to take some logs and go from there. I will also take a look at the TPS and regarding so you think that the Throttle cable is too tight? I will also try to swap my MAF with someone elses locally and see what happens. I will get back.

 

[oldman]

http://wiki.dsmlink.com/default.aspx/DSMLink/DSMLinkTPSAdjustment.html