scanmaster readings knock help

[chalo_310]

I'm getting knock and now my trnasmission does Shit past second gear these are my scanmaste readings at idle
AF 5
Lb 33-36
BAT 13.6
Int 128
Bl 121
Cle 190
Ats 94 reads hot after driven for a while
Tps.42
Iac 12

I did 3 wot these where the readings
o2 832 3.3
847 1.4
835 12.2

 

[HouTX87]

how much boost?

 

[chalo_310]

19psi with alky

 

[HouTX87]

I was getting some random high knock numbers for a while. I fixed all sorts of stuff, still had random knock over 10 degrees. Replaced the knock sensor and it's suddenly cured. I never thought it would fix it but it was about the only sensor that I hadn't replaced so I said what the heck. Just an idea anyway. If you do replace it, it's important that it's torqued to 14 ft lbs.

 

[chalo_310]

The knock sensor has been replace not sure about it being torqued...

 

[HouTX87]

If it's over-torqued it will be too sensitive. 14 ft lbs isn't much. Definitely go back and torque it properly.

 

[chalo_310]

Ok ill try that...how do the readings look
Plus now my transmission isn't shifting to 3rd

 

[HouTX87]

IAC is low, should be around 25. BLM is a little low (rich) but within spec. Should be 128 +/- 10. O2's at wot are ok but could be a little rich also. What is your fuel pressure set at with the vacuum line off?