Jeep Cherokee P2195 Causes + Diagnosis

P2195 is a general OBD2 code that indicates that the signal coming from your Jeep Cherokee’s 1’st O2 sensor on Bank 1 Sensor 1 is stuck lean. DTC P2195 is a general code, which means that it has the same meaning for any make, model, or year.  It is most typically caused by a bad … Read more

Jeep Cherokee P2272:  B2S2 O2 Sensor – Stuck Lean

P2272 in the Jeep Cherokee 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

Jeep Cherokee P2270: Symptoms, Causes, + Diagnosis

P2270 is a general DTC trouble code, which means it has the same meaning for the Jeep Cherokee 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

Jeep Cherokee P0452:  FUEL Tank Pressure Low Diagnosis

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

P2189 Jeep Cherokee:  Lean Condition at Idle (Bank 2)

P2189 is a DTC code that can occur in your Jeep Cherokee.  It indicates the air fuel mixture is too lean at idle, specifically in bank 2 (we’ll cover how to find bank 2 later).  Its is different from the much more common P0174, which indicates that bank 2 is lean at any engine speed. … Read more

Jeep Cherokee P2187:  Bank 1 A/F Mixture Too Lean”

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

Jeep Cherokee P2181: Symptoms, Causes & Diagnosis

P2181 indicates that your Jeep Cherokee has an observed cooling system temperature that is too high or too low. It will come up in the scan tool as “Cooling System Performance”. The trouble with P2181 is that by itself, it’s not narrowing much down.  There could be a problem with your Cherokee’s cooling system, temperature … Read more

Jeep Cherokee Overheating While Idle: Causes + Fix

There are a few reasons why your Jeep Cherokee 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

Jeep Cherokee:  P0068 MAP/MAF Throttle Position Correlation

P0068 in the Jeep Cherokee 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 Cherokee’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