P2198 is a generic diagnostic trouble code that indicates that your Mercury Milan’s B2S1 O2 sensor signal is stuck rich. It does not necessarily mean that the vehicle itself is running rich (although it very well could). DTC P2198 is most likely caused by a bad oxygen sensor, although there are many potential secondary causes. … Read more
P2138 is a generic powertrain code that can affect your Mercury Milan’s “drive by wire” throttle system. It means that your Milan’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 Mercury Milan’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 Mercury Milan 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 Mercury Milan’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 Mercury Milan’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 Mercury Milan 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 Mercury Milan 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
P1131 is a diagnostic trouble code that applies to vehicles manufactured by Ford, including the Milan. Trouble codes that start with P1XXX were reserved for manufacturers. This code occurs when the upstream O2 sensor on bank 1 fails a diagnostic test twice in a row. P1131 Quick Facts DTC P1131 is usually caused by a … Read more
P1151 is a diagnostic trouble code that applies to vehicles manufactured by Mercury, in this case the Milan. This code occurs when the upstream O2 sensor on bank 2 fails a diagnostic test twice in a row. DTC P1151 is usually caused by a bad oxygen sensor, fuel injector, or vacuum leak. But, there can … Read more