The computer will tell you what's wrong when you run a diagnostic test. Borrow, rent or buy an OBD2 code scanner from your local auto parts retailer to find out what's going on. Some auto parts stores will even help you read the code... if they're not busy.
I changed erg valve o2 sensor and gas cap but lights back on what do I do
Do you know your alphabet ? o2 sensor ?
how do i know if the o2 sensor is bad. The check engine light would illuminate and the code(s) set would steer you to the faulty O2 sensor.
Your valve timing is off The o2 sensor is not reading properly causing the system to go very lean.
Yes, a clogged IAC (Idle Air Control) valve can potentially cause a bad O2 sensor code on a 2003 Chevrolet Venture. If the IAC valve is not functioning properly, it can lead to irregular air-fuel mixtures, which may result in incorrect readings from the O2 sensor. This can trigger a check engine light and set a code related to the O2 sensor. However, it is essential to diagnose the vehicle thoroughly, as there could be multiple factors contributing to the issue.
All O2 sensors are threaded into the exhaust system at various points. Most vehicles have more than one O2 sensor. Need to know which O2 sensor you are looking for, need more info.
Emission parts contain a number of things such as; spark plugs/wire, O2 sensor, pcv valve, vapor canisters, MAP sensor idle control valve, etc
You need a engine scanner and hook it up and it will tell you what sensor is bad.
By "exhaust manifold sensor" do you mean the O2 or oxygen sensor? The only sensor I know of on a exaust manifold is the O2 sensor and if you follow the manifold you will see 2 sensors sticking out they will have (usually) green wires coming from them
Egr flow sensor big problem with ford. Need to check o2 switching and fuel trims with scanner. Ft should be+or -10% switching and o2 should switch between .1&.9volts or 100-900 milli volts depending on scanner. It is unlikely that only one bank can be rich and lean. Bank 1 is passenger side. Cyl 1front on that side. Coil hi failure item on fords and can affect o2 readings
Depends on what the problem is or what code was set.
The O2 sensor provides necesary information to the computer. If the vehicle is burning too much fuel there will be insufficient O2 in the exhaust. If there is too MUCH O2 in the exhaust there is a possibility that the vehicle is not performing properly and also the possibility that you will burn valves, although your EGR valve should prevent that. Periodic replacement of your O2 sensor is just good maintenance and helps with good fuel economy.