How often are new ASME pressure vessel codes published?
Keeping current requires that the revised Codes be published every three years with addendas issued every year. This chapter covers a very generalized approach to pressure vessel design based on the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1: Pressure Vessels. 9.1 Design Criteria
What does the code p0125 on the ECM mean?
The ECM monitors engine coolant temperature through a sensor after start-up. If no information is coming from the sensor after the engine is warmed up, this will trigger the code P0125. Possible causes include low coolant, stuck or bad thermostat, or faulty sensor.
When does a Toyota engine have a trouble code?
This trouble code is usually triggered when the O2 sensor in position bank 1, sensor 1 is bad or has faulty wiring. Replacing the sensor will almost always get rid of the code.
What does a bad MAF code mean on a Toyota?
The most common causes are a dirty air filter, dirty MAF or air filter housing, or faulty MAF. This code usually indicates a dirty or faulty mass air flow (MAF) sensor, or a vacuum leak downstream of the MAF sensor (perhaps in the PCV line or in the valve itself). This code can also signify a bad O2 sensor in bank 1.
What is the code for secondary air injection?
Depending on the car manufacturer, the code’s definition may change. As was mentioned, the secondary air injection system reduces emissions by introducing fresh air into the exhaust system.
How to get rid of an error code on an air pump?
To get rid of this error code, you can do the following: 1 Replace both the air pumps and the one-way check valve 2 Try and clean the air pump and test it. The one-way air check valve must be replaced as well 3 Replace the inlet hose of the air pump 4 Replace the fuse of the air pump (you can find it under the hood)
What is the p0411 code for secondary air injection?
The PCM monitors the secondary air injection system for faults. If it detects a problem, it turns on the check engine light and triggers a P0411 code. It’s worth noting that not all vehicles have a secondary air injection system. Users have reported P0411 for the following makes: Volkswagen (especially on a VW Jetta), Chevrolet, BMW, GMC, and Audi.
When to use an electric pump for secondary air injection?
Nearly all modern secondary air injection systems use an electric pump rather than a belt-driven pump. Often, this setup is only used when the engine is cold to reduce emissions and bring the catalytic converter up to operating temperature quickly. The PCM monitors the secondary air injection system for faults.