Interpreting Freeze Frame Data for P0171 Code
 

I have a P0171 Code on my 2005 Ford Escape Hybrid, my mileage is in the toilet and I have no idea how to interpret the freeze frame data. If someone could help me to understand what the problem may be, I would greatly appreciate it. The data is below:



Fuel Sys CL
Calc Load(%) 100.0
ETC(°F) 159
STFT(%) 12.5
LTFT(%) 31.2
MAP(inH9) 28.0
ENG RPM 3101
VEH Speed(MPH) 27
Spark ADV(°) 14
IAT(°F) 75
MAF(lb/min) 8.027
TPS(%) 56.0
O2S B1 S1(V) 0.665
STFT B1 S1(%) 12.5
O2S B1 S2(5) 0.085
STFT B1 S2(%) N/A
Run Time(sec) 212
FP/VAC(psi) 43.3
Command EGR(%) 0.7
Command EVAP(%) 0
Fuel Level(%) 0
WarmUp DTC CLR 4
CLR DIST(Mile) 79
EVAP P(inH20) -0.344
BAR0(inH9) 27.7
CAT TE 11(°F) 1329.0
MIS_ENA YES
FUEL_ENA YES
CCM_ENA YES
MIS_CMPL YES
FUEL_CMPL YES
CCM_CMPL NO
CAT_ENA YES
HCAT_ENA NO
EVAP_ENA NO
AIR_ENA NO
ACRF_ENA NO
O2S_ENA YES
HR_ENA YES
EGR_ENA YES
CAT_CMPL NO
HCAT_CMPL YES
EVAP_CMPL NO
AIR_CMPL YES
ARCF_CMPL YES
O2S_CMPL NO
HR_CMPL NO
EGR_CMPL NO
ECU_VOLTS(V) 13.406
LOAD_VALVE(%) 61.9
EQ_RATIO 0.999
REL TPS(%) 43.5
Ambient(°F) 55
TPS B(%) 89.0
ACC PEDAL D(%) 36.8
ACC PEDAL E(%) 42.7
ACC PEDAL F(%) 32.5
Command TAC(%) 67.8



If someone could also tell me what each freeze frame data element represents (I get the obvious like MPH, etc.), that would also be a big help in diagnosing future problems. Thanks.



R/
Prescott ...

Re: Interpreting Freeze Frame Data for P0171 Code
 

Ok, I've been doing a lot of research on the parameters while focusing on my specific P0171 code issue. I've found the following articles which shed some light on the subject and point me in a direction where I can test with some confidence that I will uncover the problem that is specific to my vehicle, they are:

http://www.aa1car.com/library/what_is_fuel_trim.htm
http://www.aa1car.com/library/ford_lean_codes.htm

There are a lot of other links on these pages (at the bottom) that I haven't followed which seem like they would help explain/detail other parameters and common (or not so common) issues. I found the two I read to be very informative.

R/
Prescott ...