What to do if check engine light code p0174 is triggered?
If check engine light code P0174 is triggered again, check the rest of the vacuum lines for leaks and continue to the rest of the diagnostic process. Remove the mass airflow sensor and clean the sensor using mass air flow cleaner or contact cleaner. Reinstall the mass airflow sensor and clear the check engine light using FIXD.
Where does the P0420 trouble code come from?
P0420 is triggered in the engine control module when there is a problem with the efficiency of the catalytic converter. The engine control unit uses two O2 sensors, one in the front of and one behind the catalytic converter to measure the efficiency of the catalytic converter.
What causes the O2 sensor to show the code po420?
Rich or lean mixtures can damage the catalytic converter, and when the catalytic converter is damaged/filled with fuel, the efficiency will be low, and the rear O2 sensor will see that and show the trigger the code Po420.
What are the Check Engine light codes for Saturn?
Saturn Check Engine Light Codes 1 Refer to our Generic OBD II code list for definitions on all other Saturn diagnostic trouble codes. 2 Manufacturer Specific Codes 3 P1031 4 P1032 5 P1105 6 P1106 7 P1107 8 P1108 9 P1109 10 P1111
Why is my throttle position sensor not working?
The reason this happens is that the ECM doesn’t get correct information from the TPS as to how much to throttle the car. Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS.
What’s the throttle body relearn procedure for a Saturn?
Start engine and ensure the engine speed is between 450 to 4,000 RPM. 2. Check that manifold absolute pressure (MAP) is greater than 5 kPa. 3. Check that the mass air flow (MAF) is reading is greater than 2 g/s. 4. Check that the ignition 1 voltage is greater than 10 volts. 5. Idle the engine in PARK for 3 minutes. 6.
Can a bad check engine light be a bad TPS?
The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling. This is often the first ever symptom of a bad TPS. Using a code reader, you should be able to confirm whether a faulty TPS is the culprit or a different component.
How much does it cost to replace a throttle position sensor?
If you need to have your throttle position sensor replaced, the cost will depend on the type of car you have. But the average cost of this replacement job isn’t that expensive. The parts will cost you between $75 and $130 on average. The labor costs will be anywhere between $60 and $90, depending on the hourly rate of the mechanics.