P0172 - Help Understanding Freeze Frame #'s

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May 10, 2015 | 04:13 PM
  #1  
I pulled a freeze frame of my last P0172 (too rich) code being thrown and I was hoping I could get some insight on these numbers and if anything looks obviously wrong to better pinpoint the problem. It was previously throwing P0171 (too lean) and my tuner said that my O2 sensor was generating different voltages while he was adjusting my fuel trims...suggesting that the sensor was on it's way out the door. Long story short, they didn't have the part in stock and as a temp fix they cleaned the sensor. Everything ran fine for about 4 days and then I started getting P0172. It's a lot, but I'm going to post everything I pulled from the scan:

ABSLT TPS 13.3% | ENG SPEED 2551 RPM | BARO PRS 28.9 HG | CALC LOAD 5.9% | MAF 0.81 LB/M | MAP 7.1 HG | OUT TEMP 95 F | COOLANT 187 F | IAT 95 F | IGN ADV 40 | ST FTRM1 -25.0% | LT FTRM1 -12.5% | VEH SPEED 29 MPH | ABS LOAD 12.2% | FUEL SYS 1 CLOSED | FUEL SYS 2 N/A | REL TPS 5.1% | THROT CMD 5.1% | ABS TPS B 13.7% | ACC POS D 21.2% | ACC POS E 10.2% | ACC POS REL 2.4% | EVAP PURGE 0.0% | EVAP VP 0.000 H20 | CMDEQ RAT 0.999 | FUEL LEVEL 42.7% | VPWR 14.062 V | ENG RUN 11:42 | IAT11 95F

If anyone has any comparisons on what a "healthy" freeze frame looks that would be awesome. I know these two codes are pretty common once aftermarket parts and tuning comes into the picture, and the solution can be a simple sensor/tweak or an unknown mystery. Any and all feedback would be greatly appreciated!
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May 10, 2015 | 10:49 PM
  #2  
"ST FTRM1 -25.0% | LT FTRM1 -12.5%" That's you issue right there, the fuel trims are maxed out. This is most likely caused by a vacuum leak or boost leak. Make sure all of your couplers are snug for your intake and inter cooler pipes
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Jun 4, 2015 | 04:39 PM
  #3  
I just wound up getting a new o2 sensor and switching to ID1000s. car runs like its brand spankin' new.
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