Mercury Grand Marquis P0352 Ignition Coil “B” Primary/Secondary Circuit → Malfunction

  P0352 is a generic OBD2 code, which means that it means the same thing for the Mercury Grand Marquis as it would any other vehicle.  It indicates that ignition coil “B”has an issue with the primary or secondary wiring circuits associated with it.  It is typically caused by a bad coil pack or wiring … Read more Mercury Grand Marquis P0352 Ignition Coil “B” Primary/Secondary Circuit → Malfunction

Mercury Grand Marquis:  Ignition Coil “A” Primary/Secondary Circuit → Malfunction

P0351 is a generic OBD II trouble code, which means that it means the same thing for the Mercury Grand Marquis as it would any other vehicle.  It indicates that ignition coil “A” is malfunctioning.  It is typically caused by a bad coil pack or wiring harness issue, although there can be other causes as … Read more Mercury Grand Marquis:  Ignition Coil “A” Primary/Secondary Circuit → Malfunction

Mercury Grand Marquis P0207:  Injector Circuit Malfunction → Cylinder 7

P0207 is an OBD II trouble code.  It indicates there is a fuel injector circuit malfunction, in this case,it would be the seventh cylinder that is malfunctioning.  P0207 is a generic code, which means that it has the same meaning for the Mercury Grand Marquis as it would for any other vehicle. When the PCM/ECM … Read more Mercury Grand Marquis P0207:  Injector Circuit Malfunction → Cylinder 7

Mercury Grand Marquis P0087:  Fuel Rail/System Pressure → Too Low

P0087 is a relatively common OBD II trouble code.  This code indicates that there is an issue with getting enough fuel pressure to the fuel rails.  It’s generic, which means that it has the same meaning for the Mercury Grand Marquis as it would any other vehicle. This code is most common on vehicles that … Read more Mercury Grand Marquis P0087:  Fuel Rail/System Pressure → Too Low

Mercury Grand Marquis P0445: EVAP Purge Control Valve Circuit → Short Circuit

P0445 is a common OBD II trouble code.  It’s generic, which means that it has the same meaning for the Mercury Grand Marquis as it would for any other vehicle.  It indicates that there is a short circuit in the Evaporative Emissions Control (EVAP) System.  P0445 is typically caused by a short circuit (as the … Read more Mercury Grand Marquis P0445: EVAP Purge Control Valve Circuit → Short Circuit

Mercury Grand Marquis P0345: CPS – Circuit Malfunction → Bank 2 → Sensor “A”

P0345 is a somewhat common and difficult trouble code to diagnose. The Mercury Grand Marquis is no exception to this rule. It indicates that there is an issue with the camshaft position sensor A on Bank 2.  It is usually caused by a wiring problem or the CPS itself.   OBDII P0345 means that there … Read more Mercury Grand Marquis P0345: CPS – Circuit Malfunction → Bank 2 → Sensor “A”

Mercury Grand Marquis P0344: Camshaft Position Sensor → Circuit Intermittent

P0344 is an OBDII diagnostic code.  It is a generic code, which means that it has the same meaning for the Mercury Grand Marquis as it would any other vehicle.  If your Grand Marquis has this code, it means that the PCM (powertrain control module) has detected that the camshaft position circuit is sending an … Read more Mercury Grand Marquis P0344: Camshaft Position Sensor → Circuit Intermittent

Mercury Grand Marquis P0451: EVAP Pressure Sensor → Range/Performance

Like all OBD-II trouble codes, P0451 has the same meaning for all vehicles.  It means that your Mercury Grand Marquis‘s EVAP system has a pressure sensor that is malfunctioning in some way.  P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a … Read more Mercury Grand Marquis P0451: EVAP Pressure Sensor → Range/Performance

Mercury Grand Marquis P0206:  Injector Circuit Malfunction – Cylinder 6

  P0206 is an OBD2 trouble code.  It indicates there has been a fuel injector circuit malfunction, in this case, it’s the 6’th cylinder in the firing order that is malfunctioning.  P0206 is a generic code, which means that it has the same meaning for the Mercury Grand Marquis as it would for any other … Read more Mercury Grand Marquis P0206:  Injector Circuit Malfunction – Cylinder 6

Mercury Grand Marquis P0205:  Injector Circuit Malfunction – Cylinder 5

P0205 is an OBD2 trouble code.  It indicates there is a fuel injector that has a circuit malfunction, in this case, it’s the fifth cylinder in the firing order that is malfunctioning.  P0205 is a generic code, which means that it has the same meaning for the Mercury Grand Marquis as it would for any … Read more Mercury Grand Marquis P0205:  Injector Circuit Malfunction – Cylinder 5