is it spiking to 320 ? can you put up a graph of the load vs rpm vs boost?

perhaps your piping is too big and the turbo is really pushing more than 25psi, but by the time it gets measured (in the IM) its 25psi...

 

Here it is tephra, let me know what you guys think? Thanks

 

Could it be a MAF rescaling issue?

 

use 2 byte load not cal load.

 

Can you explain this, thanks?

 

I hope so but how do I check this or fix this?

 

your "calculated load" is giving you a misleading high indication. Check the "2byte load" box in evoscan and use that number when determining load.

 

OK, but how about the fuel cut problem? Would this change the way my ecu reading too?

 

no.

but we really need to find out the true 2byte load before dealing with fuelcut

 

OK, I wont be able to run this till tomorrow so I'll keep you guys updated. Thanks for all your help.

 

How long time it takes for the pressure to drop during your leak test?
Did you made your leak test with cold or hot engine?

 

Takes awhile for the pressure to drop after I kill the compressor. I did the leak test both cold and hot. I know this couplers soften up when its hot. I also retorqued all my clamps.

 

Things i found to affect load calculations are....

MAF scaling. Hz spikes will screw up the load calc (easily seen at idle)
Boost controller not holding steady. It will allow spikes and screw your load calcualtions
Log with 1 byte or 2byte load = more accurate
Fuel cut, turn the timer way up = no more fuel cut ever

 

out of curiousity, what is a reasonable 2byte load to be seeing @ 11psi

 

Running some quick numbers at sea level and a MAT of 100F, I get about 190. So, anything in that neighborhood should be reasonable.