It has a Better spray pattern and also will inject fuel in the open intake valve (indirect injection).
vortec trucks have MPI Multipoint fuel injection. yes it's not getting enough electic to the wires to fuel pump
Only a carburated engine will have a timing value. The multipoint fuel injection motors timing is controlled by the computer.
Advantages of a GDI engine (a direct injection engine) include reduced fuel consumption, and performance boost.
depending on year and setup, carbuerated, fuel injected, multipoint fuel injection, the range is between 170hp and 230hp.
The IAT sensor is mounted in the backside of the air cleaner housing for a 1.6 MFI (Multipoint fuel-injection) engine and for a TFI (Throttle body fuel-injection) enging it's located on the right hand side of the engine, mounted in the intake manifold below the throttle body.
Should be 39psi on a multipoint or central fuel injection system. One with a mechanical pump/carburetor I think it's below 10psi, maybe 6-8 or so.
many, many things can cause this. first determine if it is multipoint or throttle body injection, if its throttle body it will have a round air filter on top of engine, or multipoint has air filter box behind left hand headlight. if u can explain when problem occurs, eg under load or at idle, will help out heaps, if u can find this out i'd be able to help u further
You did not state which engine. The 6 cylinder was carberated so does not have fuel injection. The 4.oL fuel injection was first put in 1991 Wranglers 6 cylinders. The 4 cylinder for 1990 had a throttle body injection (similar to a carberator except the computer "injects" fuel into the air stream as it passes- different from multipoint injection where fuel is injected directly into each cylinder- hence multipoint designation). My Haynes manual says that on most 87-95 models, the relays are located next to the battery. There is also un under hood fuse center it might be in or even could be in the fuse block, but more likely under the hood.
The system pressure does not have to be in time like with the multipoint injection in reliance on negative pressure. The control unit keeps track of all essential data, for example the speed or temperature of the engine, but as well the throttle valve angle and position, or whether the air conditioning is in use and regulates the amount of fuel accordingly.
You should clarify, advantage compared to what: for instance muscle power, gasoline engine, etc.
They are inside the inlet manifold (Penum) to get access you need to unbolt the top half of the penum .The bottom half can stay bolted to the engine block . the plenum is the curved inlet manifold with the throttle body attached to it & the vortec name plate on top. Inside the plenum the fuel injection lines of the multipoint injection system run to the injectors at the end of each line.
Lower emissions Better cold engine starting/idling better fuel economy and in most cases more power through out the powerband.