P CODES (POWERTRAIN) P0100 - P0199 P0171 Questions

I've Had This Code Checked And Now I Need To Know What Will Cause This Code And How Do I Fix It.

There Is A Common Leak In The Intake For This Specific Truck.

The Code P0171 On My Reader Says "system Too Lean Bank 1". After Failing Smog, I Realized I Would Have To Fix The Check Engine Code Instead...

My Check Engine Light Came On This Morning As Soon As I Cranked It Up. I Took It To Advance Auto And They Read The Obd Code And It's...

As The Tittle Says. I Get A Lean Code P0171 But Only If I Use 87 Octane. I Verified This By Filling The Tank 3/4 Of The Way With 89 And...

Service Engine Soon Light On Always! Gave It A Tune Up And Replaced Mas. Found A Vacuum Leak Where The Air Cleaner Mounts On Top Of Engine....

I Drive My Car ~35 Miles A Day Round Trip During The Week. I Got A Cel With P0171 Code While Driving; The Console Light (green While...

Replaced: Vacuum Hoses, Intake Manifold Gasket, New Spark Plug Wires, New Spark Plugs, Fixed Exhaust Leak, New Pcv Valve, New Map Sensor. I...

The Check Engine Light Came On On My Car. Had Autozone Pull Trouble Code. Code P0171 Came Up. They Suggested Maf Sensor. I Replaced And It...

Can You Help Me With Which Direction I Should Go? My Freeze Frames Read: Fuelsysa- Cl Load_pct- 23.1 Ect (c°)- 39 Shrtft% 0.8 ...