This page is meant to help you troubleshoot the Saturn SW P0420 trouble code. It covers P0420 meaning, symptoms, causes, and possible solutions. WIth the SW, OBDII P0420 is often caused by a bad oxygen sensor, but there can be other causes as well. Jumping straight to replacing the O2 sensor can cost … Read more
P0457 is a somewhat common trouble code with the Saturn SW. This code references a number that is given to you when you plug your SW into a OBDII scanner. P0457 Indicates that there is a leak in the Evaporative Emission Control (EVAP) System. It is similar to P0455 (large leak) and P0456 (small leak) … Read more
A flashing check engine light is your Saturn SW’s way of saying “I have a serious problem, don’t ignore me”. Most of the time, that serious problem is a misfire. This flashing light should not be ignored. When your engine is misfiring, it is dumping raw fuel into the exhaust. This raw fuel can detonate, … Read more
P0132 is a common OBDII code that occurs in many vehicles, including the Saturn SW. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. The air fuel sensor stays in rich biased mode for too long. There are also some less likely problems that can cause … Read more
P0122 is a common trouble code with the Saturn SW. It’s an OBDII code that references issues with the Throttle Position Sensor (TPS). It is relatively serious problem since it can leave your vehicle stranded or severely limited. OBDII code P0122 is a serious problem that requires serious attention. Diagnosing it can be … Read more
P0128 is a relatively common OBDII trouble code. It is triggered when your Saturn SW‘s coolant temperature fails to reach the proper operating temperature. It’s a generic powertrain code, which means that regardless of who manufactured the vehicle, it’ll have the same meaning (1996+). SW P0128 Symptoms There aren’t many symptoms with P0128, unless … Read more
P0121 is a relatively common trouble code with the Saturn SW. It’s an OBDII code and has to do with the Throttle Pedal Position Sensor. It is relatively serious problem since it can leave your vehicle in failsafe mode. OBDII code P0121 is a serious problem that requires serious attention. Diagnosing it can … Read more
P0021 is a common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Saturn SW can have VVT, and is prone to developing this code. P0021 is a generic OBDII code. This means that it has the same definition regardless of the make … Read more
P0741 is a very common OBDII trouble code. It’s know to affect the Saturn SW quite often. Here’s what it means: P0741: Torque Converter Clutch Circuit → Performance or Stuck Off The SW uses a clutch in the torque converter to lock the engine and transmission together at highway speed. P0741 can register whenever this … Read more
One of the most common problems with the Saturn SW is when it throws the P0700 trouble code. A trouble code is a code thrown out by an automatic transmission whenever it detects in the SW that there is an issue that needs your attention. In the case of the P0700, it is … Read more