How does a throttle body injector work?
How does a throttle body injector work?
With Throttle Body Injection (TBI), one or two injectors mounted in the throttle body spray fuel into the intake manifold. Fuel pressure is created by an electric fuel pump (usually mounted in or near the fuel tank), and the pressure is controlled by a regulator mounted on the throttle body.
Where does throttle body fuel injection take place?
In the early days of fuel injection, automakers developed throttle-body fuel injection (TBI) as a cheap way to switch over to fuel injection. TBI mounts the injector (s) right in the throttle body.
Why is my throttle body injection not working?
When this automotive part is not working correctly, or its electronic sensors begin firing off readings to the onboard diagnostic computer showing problems, it can create car problems.
How to troubleshoot your TBI fuel injection system?
Troubleshooting your TBI Fuel Injection System Most of the problems encountered while installing your fuel injection system or after a time of operation are very simple. If your check engine light is on you more than likely have a hard fault meaning something is grounded out, unplugged, operating out of range or has gone bad. See
Is there no fuel from injectors to start truck?
No fuel from injectors to start truck. When I try and start my 93 Chevy Cheyenne k3500 no fuel come out of the injectors. If I use starting fluid the truck starts and the injectors work great. Has died a couple times while driving, but mostly runs fine and then won’t start one turned off.
What’s the pressure on the throttle body injector?
Injector pressures range from 13 to 16 psi (low pressure system) or 35 to 60 psi (high pressure system), and are kept constant by the fuel pressure regulator.
How do you clean a Chevy throttle body injector?
Remove the air cleaner by removing the wing nut, lid, vacuum lines and air ducts attached to it, then lifting it out of the engine compartment. Set the air cleaner aside, with the wing nut, to avoid losing the wing nut.
No fuel from injectors to start truck. When I try and start my 93 Chevy Cheyenne k3500 no fuel come out of the injectors. If I use starting fluid the truck starts and the injectors work great. Has died a couple times while driving, but mostly runs fine and then won’t start one turned off.
Where are the fuel injectors located on a Chevy?
Pressurized fuel is strained through screen-type filters before it is introduced into the engine through a pair of injectors located above the throttle body’s venturi and throttle plate. Over time, varnish and sediment clog the screens and injectors, causing inefficient fuel atomization.
