Nissan Caravan P2272:  B2S2 O2 Sensor – Stuck Lean

P2272 in the Nissan Caravan is a general diagnostic trouble code.  It means that the “bank 2” downstream oxygen sensor (behind the catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it can, but usually doesn’t).  P2272 is typically … Read more

Nissan Caravan P2270: Symptoms, Causes, + Diagnosis

P2270 is a general DTC trouble code, which means it has the same meaning for the Nissan Caravan as it would any other vehicle.  It means that the oxygen sensor located on bank 1 behind the catalytic converter is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that … Read more

Nissan Caravan DTC P1564:  ASCD Switch Malfunction

P1564 is a common code that can occur in the Nissan Caravan.  It indicates that the ECM has detected an issue with the Automatic Speed Control Device (ASCD) More specifically, with the voltage resistance at the switch itself. ASCD is just Nissan’s overly complicated way of saying cruise control.  It should not be considered a … Read more

Nissan Caravan P0452:  FUEL Tank Pressure Low Diagnosis

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

Nissan Caravan P2187:  Bank 1 A/F Mixture Too Lean”

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

Nissan Caravan Overheating While Idle: Causes + Fix

There are a few reasons why your Nissan Caravan 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

Nissan Caravan:  P0068 MAP/MAF Throttle Position Correlation

P0068 in the Nissan Caravan 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 Caravan’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

Nissan Caravan: Engine Smoking Causes + Diagnosis

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