HI thanks for reading i recently got the code
freeze frame info
DTC P0171

Fuel SYS1 cl

Fuel SYS2 N.A

Load PCT calculated load value 18,0%

ETC engine coolant temp 86 C or 187 F

Short term fuel 1,6%

Long term fuel 24,2 %

Map 29 KPA

RPM 601 RPM

VSS Vehicle speed 0

spark advance ignition timing advance 10

IAT intake air temp 57 C

MAF 3.00 g/s

TP 12.2 %

Air Stat off

P0171 engine runs too lean B1 S1
any way no vaciom leaks found after i changed the intake manifold still the same problem
today i changed the exhaust manifold due to crack with new OEM new one i have reset the code p0171 now the trem fuel level is like

Short fuel trem is 7%
long fuel trem is still 24% just like old times
HO2S sensoer changed by new one code is still there



i am going crazy i already through 740$ for exhaust manifold 250$ for intake manifold 65$ for HO2S 95$ for MAF its driving me crazy please help

hummer h3 89000M 2007 LLR 3.7l I-5

no miss fire records on cylinders

Correct me if I am wrong