I'm loosing fuel pressure with the motor off, and have eliminated the fuel pump check valve. That leaves me with either FPR or leaking injector. I read an old post by swartlkk that stated GM P/N 12568332 came with the FPR. Is that true? On GM Parts Direct it says the kit comes with only the injector, bracket, and seals.

Thanks.

 

That is the complete fuel injection spider with all six MFI injectors, the main body, and the FPR all in one nice tidy package.

 

Excellent! That'll take care of one problem, and prevent a future headache as well.