Fault Code Library

Written by a working mechanic — what each code means, what gets checked first in the shop, and honest cost ranges. Cada código también en español.

• P0011 — Cam Timing Over-Advanced Bank 1 (Fix Guide) (ES)
• P0016 — Crank/Cam Correlation Bank 1 (Mechanic Guide) (ES)
• P0101 — MAF Sensor Fix Guide From a Real Mechanic (ES)
• P0113 — IAT Sensor High Input — Causes, Fixes, Cost (ES)
• P0128 — Thermostat Stuck Open? Causes and Costs (ES)
• P0135 — O2 Sensor Heater Circuit — Causes, Fixes, Cost (ES)
• P0141 — O2 Sensor Heater Circuit Bank 1 Sensor 2 Fix (ES)
• P0171 — System Too Lean (Bank 1) — Causes & Fixes (ES)
• P0174 — System Too Lean Bank 2 — Causes & Fixes (ES)
• P0300 — Random Misfire Causes, Symptoms & Cost (ES)
• P0301 — Cylinder 1 Misfire — Causes, Fixes, Cost (ES)
• P0325 — Knock Sensor Circuit Malfunction (Bank 1) (ES)
• P0340 — Camshaft Position Sensor — Causes & Cost (ES)
• P0401 — EGR Flow Insufficient – Mechanic's Guide (ES)
• P0420 — Meaning, Causes & Fix Costs (Mechanic's Guide) (ES)
• P0442 — EVAP Small Leak — Causes, Cost & Fixes (ES)
• P0446 — EVAP Vent Control Circuit — Mechanic's Guide (ES)
• P0455 — EVAP Large Leak — Causes, Fix & Cost (ES)
• P0507 — High Idle Causes & Fixes (Mechanic's Guide) (ES)
• P0700 — P0700 Code Meaning, Causes & Cost — Mechanic Explains (ES)