mass air sensor or purge valve sensor
could be a bad fuel pressure regulator
When the driver let's off the gas pedal going into a turn raw fuel gets pumped into the exhaust manifold. The manifold is so hot the fuel ignites and you see flames from the exhaust pipe. It's totally normal.
The main reason for exhaust temprature is the problem with the injectors.the unburnt fuel from the combustion chamber flows to the exhaust manifold while engine works.This unburnt fuel burns in the exhaust manifold burns and causes high exhaust temprature.
The intake manifold routes the fuel/air mixture to the cylinders or just the air on a modern fuel injected engine. The exhaust manifold routes the burnt fuel gases out of the engine into the exhaust system.
Intake manifold delivers the fuel air mixture to the cylinder heads, exhaust manifold collects the gases after combustion, and channels them into the exhaust pipe.
The intake manifold is where the air and fuel mix and enter the engine. The exhaust manifold is where unspent gas and air exit the engine. In other words the intake manifold is where the engine breathes in and the exhaust manifold is how the engine exhales out.
On every vehicle there are two manifolds. An intake manifold and a exhaust manifold. The intake supplies fuel and air to the cylinders. The exhaust collects exhaust from those same cylinders.
The intake manifold distributes the air fuel mixture from the carburetor to the cylinders. The exhaust manifold collects the exhaust gases from the cylinders and directs them out the exhaust pipe.
Unburned fuel in the exhaust system causes the backfire from the exhaust pipe.
Inlet manifolds are actually called intake manifold and this is to allow air to be injected into the fuel for either a rich or lean mixture for either performance or gas mileage (which can be adjusted). The Exhaust manifold is used to expel your burnt fuel, or air/fuel mixture, during the exhaust stroke on a 4-cycle engine to allow room for the intake stroke to bring in your fuel, or air/fuel mixture. The exhaust manifold simply directs the exhaust and become extremely hot. The exhaust is pushed out by the exhaust stroke.
There are basically 2 manifolds. The intake manifold routes air to the engine and also fuel on a vehicle with carburetor or throttle body fuel injection. The exhaust manifold routes exhaust gases out of the engine to the converter and then to the tail pipe.
There are two O2 sensors. One on the exhaust manifold and the other is on the exhaust after the catalytic converter. The one on the manifold causes the most problems as it immediately affects fuel mixture being delivered to your engine. www.trailvoy.com Trailblazer enthusiasts website!
The oxygen sensor on a 1988 Honda Prelude fuel injected engine is on the exhaust manifold. It screws directly onto the front of the exhaust manifold.