Honda Passport P1399:  Random Cylinder Misfire

P1399 is a Honda specific diagnostic trouble code.  It means that more than one of your Passport’s cylinders is misfiring (maybe just one, more on that below), and is most common fix is to adjust the valve lash or replace the bad ignition component. P1399 Quick Facts Most commonly caused by valves that are out … Read more

Honda Passport P0452:  FUEL Tank Pressure Low Diagnosis

P0452 is a generic OBD II code that can occur in the Honda Passport.  It means that your Passport’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

Honda Passport P2187:  Bank 1 A/F Mixture Too Lean”

P2187 is a DTC code that can occur in the Honda Passport.  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 Passport’s oxygen sensor on Bank 1 (usually sensor 1) has detected that the air … Read more

Honda Passport Overheating While Idle: Causes + Fix

There are a few reasons why your Honda Passport 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

Honda Passport:  P0068 MAP/MAF Throttle Position Correlation

P0068 in the Honda Passport 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 Passport’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

Honda Passport: Engine Smoking Causes + Diagnosis

A smoking engine is a serious thing.  If your Honda Passport’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 Passport’s engine would smoke include overheating, burning oil, or … Read more

Honda Passport:  Bad Sway Bar Links (Common Symptoms)

Sway bar links are responsible for connecting your Honda Passport’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 Passport.  If you have a bad sway bar link, your vehicle will … Read more