Need code help

quick trip to autozone/oreillys for a new filter, a paper towel wipe down and report back before we get all crazy with blown engines and vacuum leaks.

 

Really?
All 3 codes are fuel related.
Toyota interprets SAE code P1170 as fuel performance/Port injection
Codes p0171,74 (also72, 75? are fuel system codes.
Op needs to run a check using the Techstream to pull your 6 digit codes for these codes and full a freeze frame to troubleshoot.
Lower pressure pump needs to be checked.

 

Yes, oil from that garbage filter coats sensors. Computer trys to adjust for fouling sensors. These engine sensors/electronics are so sensitive. All tied together.

 

Per SM, maf sensor is the 4th item to troubleshoot for these codes. Search tw fot these codes and so
Also, maf sensor performance can be checked/ruled out with basic phone app.
BTW, I run toyota oiled filter. My MAF is within specs for idle, 2000 rpms and 3000.