O2 Crosscount

[buickruss]

Iv been looking for some knock that comes on early at about 5# boost.. I replaced the heatedO2 sensor because the cross counts seemed to update pretty slow. New Denso O2 is about the same. Looks lazy I think.
Heres a few quick logs I did to show

 

[SCOOBY DOO]

Is your fuel pressure rising with boost? Is the fuel pump hotwired? Is the alky working?

 

[buickruss]

Hotwired FP. Line off fuel pressure I have at 45.
Alky works but I turned it off. Only going to 6# of boost. The fuel pressure does rise with boost. Driving at 0boost/0vac shows about 50#.
at 6# boost where im getting knock the gauge shows about 70#

 

[Eric Stage I]

I would say your boost gauge is wrong. In both those logs your MAF reading is hitting 255, so you're way higher than 6psi boost.
Also your fuel pressure when at 6psi boost should be 49psi, not 70psi. Which also indicates your boost gauge is likely wrong.

 

[buickruss]

I will get another gauge and compare.

 

[buickruss]

Eric is correct. Boost gauge I have needs to be repaired with a hammer.

Tuning will be easier with correct information.....