Injector Flow Rate PID vs Boost

[alan91z28]

I have searched around but haven't found a real concise answer on this. On my LS3 type TVS2300 with E67 GMPP controller, when I look at Injector Flow Rate PID in the scanner it follows pretty well as expected the injector flow table vs delta pressure when at atmosphere and also under vacuum.

However when it goes into boost, the injector flow pid seems to pretty much hang past the normal atmosphere pressure no matter how much boost is present

I am using a ZR1 MAP sensor which is clearly showing the right boost / vacuum and a standard fixed 400kpa type (58psi) fuel system. The injectors are ZR1 type injectors with the stock ZR1 tables

So my question is if I go into boost shouldn't i expect to see injector flow rate PID match the value of 400kpa - boost kpa in the injector table?

thanks

[DSteck]

I think only the CTS-V and ZR1 will accomodate for the modified flow rate in boost.

[alan91z28]

thanks, i was kind of thinking that might be the case but wanted to check as you give great advice

thx