Need some help please

[sonoma98]

Hey I'm tuning on an lbz using this software, I used it to turn off the egr functions. Since doing that Im having a terrible time with the turbo. First I was getting overboost codes, shut them off. Now I'm getting a manifold pressure sensor high code. Is this all caused by the egr or am I chasing some other problem?

[SASDakota]

Post your tune, what is likely happening though is that your vane position tables are overshadowing your boost desired tables after shutting off EGR function.

[sonoma98]

lbz stock tune -egr 2.o.ctz im gonna try building another tune off the stock file. I think i screwed up and modified a hot tune i had laying around. this is the tune thats in the truck now.

[sonoma98]

Went data logging after building a new tune off of the factory tune. Injector 3 is at -150 for balance rate and I'm 2,000 psi low on rail pressure under load and it's building up to 7 psi more boost than desired, I'm gonna change the injector and retest.

[sonoma98]

Also instead of turning the egr control off I just changed the parameters so it's never on in the new tune