PPK N55

[Tricki]

I have PPK with JB4 and did some logging...noticed ECU PSI was around 8-9. I thought as I have PPK it should be around 11... Can someone confirm. I do have the overrun exhaust burbling and popping!!

[Solo_M_Tech]

my guess is the Jb4 is telling the ECU it's 8-9 psi since that's the stock PSI. which make the PPK boost levels irrelivent.

[Tricki]

When logging on Map 0, which jb4 is off. Ecu psi, target and boost show it ain't making more than about 9 PSI.

[Solo_M_Tech]

Originally Posted by Tricki

When logging on Map 0, which jb4 is off. Ecu psi, target and boost show it ain't making more than about 9 PSI.

How are you logging on the JB4 app when the JB4 is disabled? Im still gonna say the extra resistance in the JB4 board is causing your variance. Only way to truely know, is to install a boost gauge in the intake manifold and get a reading that way. Or completely uninstall the JB4 and log using a different app.

[Tricki]

I have jb4 connect with the APP. It still logs and shows Boost.

[Solo_M_Tech]

Originally Posted by Tricki

I have jb4 connect with the APP. It still logs and shows Boost.

I still think the JB4 isn't reporting accurate boost levels. Since the signal is intercepted by the JB4, it has to be effecting the reading even when disabled.