what does a boost spike do? i think i am seeing one, and when boost spikes, my car "cuts off", like the cold rev limit of a regular ap1.



Setup has been running fine (no boost spikes or whatever this issue is) for the last 6000 miles, but this issue developed last night.

What is happening is that if I try to accelerate full throttle, it will cut off at 7k rpms.

I have an inlinepro stage 2 setup, kpro, ID1000cc, and am trying to run 15 psi. the wastegate spring is 13 psi.

I also think that my kpro reads psi incorrectly, but it was running fine previously, just would always display a lot higher psi numbers.

any help is appreciated.

thanks!

 

wow , it sounds a little complicated. I never got this .

 

I can not see your log thru my phone but...boost spike is like if your boost is set at 15 psi, when it reaches that point it will be increasing quickly that it will go higher than 15 psi and then drop back down once the boost control system can correct. I do know most MBC guys this issue more than proven EBC system. But if you can not hold your boost up to redline or if your rpm can not go higher than 7k I think its diff than boost spike. No?

 

Your map resolution needs to be changed. MAP in kpro datalogs read in bar not actual psi. So 1 bar = 14.7 psi. Change your max threshold from 100 to 1.5 and you will see real numbers.

Repost the datalog after you do this and we can help you further.

 

change it by double clicking on the sensors? it was 100, changed it to 1.5 and it didn't really change anything except it went way off the graph earlier

is this better?

 

In that pic you have it @ 18. Just checked, mine is set at 3 and it shows good resolution. 1.5 will max out @ ~ 21psi so it won't work good either, my bad. Give 3 it a shot



Hondata, please fix this.

 

 

talked to the tuner who said it might be just a hose in a vaccuum line/vaccuum line disconnected, everything looked in the engine bay, the guy i had install everything kept the boost solenoid near the pedals, with the vaccuum lines run through a hole in the firewall with nothing around the metal part (saw this when i was replacing a blown turn signal fuse), so i need to check that out, hopefully it's that simple

 

1 bar = 14.5 psi

1 atm = 14.7 psi

 

here's another one

i thought the problem was that there weren't any vacuum hoses connected to the wastegate, which i discovered while trying to fix my headlights

does it matter which vacuum line goes to which port?

i guess i'll try switching those tomorrow?