Lincoln Nautilus P1151:  Causes & Diagnosis

P1151 is a diagnostic trouble code that applies to vehicles manufactured by Lincoln, in this case the Nautilus.  This code occurs when the upstream O2 sensor on bank 2 fails a diagnostic test twice in a row. DTC P1151 is usually caused by a bad oxygen sensor, fuel injector, or vacuum leak.  But, there can … Read more

Lincoln Nautilus P0452:  FUEL Tank Pressure Low Diagnosis

P0452 is a generic OBD II code that can occur in the Lincoln Nautilus.  It means that your Nautilus’s EVAP system has detected low fuel tank pressure. The evaporative emissions control system (EVAP) sends fuel vapors from the fuel tank to the intake manifold to be burned off.  When the pressure in the system is … Read more

Lincoln Nautilus P2187:  Bank 1 A/F Mixture Too Lean”

P2187 is a DTC code that can occur in the Lincoln Nautilus.  It indicates the air fuel mixture is too lean at idle. The technical definition for P2187 “System Too Lean at Idle: Bank 1”.  The code is thrown after your Nautilus’s oxygen sensor on Bank 1 (usually sensor 1) has detected that the air … Read more

Lincoln Nautilus Overheating While Idle: Causes + Fix

There are a few reasons why your Lincoln Nautilus would be overheating when idling.  The most common ones include a bad thermostat, water pump, electric fans, and low coolant level.  This guide is intended to help you find the cause of this overheating in the most efficient way possible.  So, let’s start with what’s easy … Read more

Lincoln Nautilus:  P0068 MAP/MAF Throttle Position Correlation

P0068 in the Lincoln Nautilus is a generic OBD II code.  In layman’s terms, it means that the MAP (manifold absolute pressure) and/or MAF (mass airflow sensor) are providing the Nautilus’s computer contradicting data compared to what it should be in relation to the throttle position sensor. The throttle position sensor tells the computer how … Read more

Lincoln Nautilus: Engine Smoking Causes + Diagnosis

A smoking engine is a serious thing.  If your Lincoln Nautilus’s engine has smoke coming from it, it needs to be addressed right away.  It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Nautilus’s engine would smoke include overheating, burning oil, or … Read more

Lincoln Nautilus:  Bad Sway Bar Links (Common Symptoms)

Sway bar links are responsible for connecting your Lincoln Nautilus’s sway bar to the chassis.  The job of a sway bar is to eliminate body roll by helping the tires keep better contact with the road, which improves the handling characteristics of your Nautilus.  If you have a bad sway bar link, your vehicle will … Read more