Dodge Challenger P2138:  Symptoms, Meaning, Causes + Diagnosis

P2138 is a generic powertrain code that can affect your Dodge Challenger’s “drive by wire” throttle system.  It means that your Challenger’s “D” and “E” throttle position sensors do not agree with one another on how much far the throttle has been opened.  They should have a similar voltage output.  In this case, they do … Read more

Dodge Challenger:  P2135 DTC:  Meaning, Causes, and Diagnosis

P2135 is a generic powertrain code that can affect any make or model of vehicle that has a “drive by wire” throttle system (almost every vehicle made today). P2135 TPS Switch “A/B” Voltage Correlation If your Dodge Challenger has P2135 it is considered “drive by wire”.  Which means that it uses sensors and actuators to control … Read more

Dodge Challenger P2195 Causes + Diagnosis

P2195 is a general OBD2 code that indicates that the signal coming from your Dodge Challenger’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

Dodge Challenger P2272:  B2S2 O2 Sensor – Stuck Lean

P2272 in the Dodge Challenger 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

Dodge Challenger P2270: Symptoms, Causes, + Diagnosis

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

Dodge Challenger P0452:  FUEL Tank Pressure Low Diagnosis

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