Generally there are two oxygen sensors for each cylinder head on all later model vehicles (some early models may only have one). Each upstream oxygen sensor is located directly below the exhaust manifold flanges and above the upstream catalyctic converter. Each downstream oxygen sensor is located in the exhaust pipe, directly behind the upstream catalyst, and ahead of the main catalyst. NOTE: Some very early models may only have one catalyst. The electrical connector for the right downstream oxygen sensor is located on the right side of the transmission. - Mazda Pickups Repair Manual == Try Removing the front tires behind plastic shielding to get to the sensors on the upstream O2 sensors and there should be another downstream "easier".
Under hood, driver side, rear engine area, above exhaust pipe flange, mounted in exhaust manifold.
I don't think it has a knock sensor ( I know that the 4.0 liter V6 engine in my 1995 Ford Explorer doesn't have a knock sensor )
I don't think it has a knock sensor ( I know that the 4.0 liter V6 engine in my 1995 Ford Explorer doesn't have a knock sensor )
Replace the O2 sensor. Bank 1 sensor 1 means it is the sensor on the side of the number 1 cylinder and before the catalytic converter.
Oxygen sensor is on the exhaust. It controls fuel injectors, and if bad will cause "check engine" and will fail at smog test. They cost about $50. I replace them every 2 years. Right and left are determined from sitting in the drivers seat. Right is passenger in the USA.
Checking on the location of the one for a 1998 4.0L: Under hood, center, upper engine area, mounted behind rear of intake manifold, in the engine block .
Iti's mounted to the transmission. You will need to go under the car and look for it. Hope this will help.
To be sure you should have the codes pulled; If I were to guess, I would say your Oxygen sensor sensor is faulty causing the light to come on. Once you slow down, it is able to calibrate again. I hope this helps you. Mark
Iy is located on top of the large, black air intake tube- just after the air filter housing.
there are so many reasons but i suggest check for auto chock and knock sensor both are related to hi fuel supply in manifold, u'll surely get the work done
Egr valve does not cause stalling. it does not open at idle. I would look at oxygen sensor, then check the gas for water. The EGR can be cleaned, but my EGR valve is 10 years old and did not need cleaning. Also look at plugs and wires.
I had a similar problem with my 1994 B4000. I took it to the dealership where they ran a diagnostic but found nothing wrong. After many inquiries, I replaced the mass air flow sensor and this solved the problem.