P2138 is a generic powertrain code that can affect your Acura RLX’s “drive by wire” throttle system. It means that your RLX’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
P2196 is a generic diagnostic trouble code that indicates that your Acura RLX’s first oxygen sensor on bank one is stuck rich. It does not necessarily mean that the vehicle itself is running too rich. This code is the opposite of code P2195, which indicates the oxygen sensor is stuck lean. P2196 Definition: Oxygen Sensor … Read more
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 Acura RLX has P2135 it is considered “drive by wire”. Which means that it uses sensors and actuators to control … Read more
P2197 is a general DTC code that indicates that the signal coming from your Acura RLX’s first O2 sensor on the bank two side of the engine is stuck giving off a lean signal. The voltage reading from a normal oxygen sensor should look something like a heartbeat, whereas with P2197 the voltage looks like a … Read more
P2195 is a general OBD2 code that indicates that the signal coming from your Acura RLX’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
P2272 in the Acura RLX 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
P2270 is a general DTC trouble code, which means it has the same meaning for the Acura RLX 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
P1009 is a common Acura made vehicle trouble code. This code indicates the VVT advance control is malfunctioning, leaving the engine timing stuck advanced. Many Acura RLX’s use something called a VTC actuator to control the camshaft timing of the engine. It works by using oil pressure to hydraulically move the camshaft. This allows the … Read more
P1399 is a Acura specific diagnostic trouble code. It means that more than one of your RLX’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
Your Acura RLX utilizes an evaporative emissions control (EVAP) system to migrate fuel vapors from the gas tank and fuel filler neck, and sends them to the engine to be burned off. When the pressure inside of the fuel tank is too high, P0453, is thrown and the check engine light comes on. If the only … Read more