What controls fuel injectors?
What controls fuel injectors?
The amount of fuel injected is controlled by a flap valve located in the engine’s air intake. Each injector contains a spring-loaded valve that is kept closed by its spring pressure. The valve only opens when the fuel is squirted in.
Why is my fuel injector # 2 cylinder not getting fuel?
No Pulse I hooked a stethoscope to the injector #2 and it has no pulse. All the injectors are ticking perfectly fine. I switched injectors to stock and have 8 set of these injectors and no matter which injector I use, the #2 cylinder isnt getting fuel. The engine studders and has terrible rough idle at like 550rpm.
Why is the number 2 injector not pulsed?
If you don’t get it, the injector isn’t being pulsed. Now, since it’s only the number 2 injector, it shouldn’t be the injector driver in the ecu. Look at wiring diagrams again and trace the injectors back to the ecu, checking for voltage just like you did before. Most likely you have an open somewhere. Click to expand…
How are fuel injectors fired in a DSM ECU?
The DSM ECU uses sequential firing of the injectors most of the time, we have injector drivers for each injector. It’s not a batch fire setup except when cold starting and under acceleration enrichment. The DSM ECU uses sequential firing of the injectors most of the time, we have injector drivers for each injector.
When is a fuel injector not a batch fire?
It’s not a batch fire setup except when cold starting and under acceleration enrichment. The DSM ECU uses sequential firing of the injectors most of the time, we have injector drivers for each injector. It’s not a batch fire setup except when cold starting and under acceleration enrichment. Click to expand… Ah yes, you’re right.
How to test the fuel injectors in a Dodge 3.9L?
To test the fuel injectors in your Dodge 3.9L, 5.2L, or 5.9L you don’t need any expensive tools. Here’s a basic list of tools you’ll need to test all eight fuel injectors: A multimeter. You’ll only be using the multimeter to check resistance (Ohms).
How to tell if a fuel injector is bad?
CASE 2: One (or more) fuel injector value is totally different from the rest. Retest the fuel injector that was not within the stated specification. If the resistance value is still the same and drastically different from the normal resistance value (or different from the rest of the fuel injectors), that fuel injector is bad.
What causes a misfire code on a Dodge 3.9L?
Lack of power when accelerating your pickup, van, or SUV. Bad gas mileage. Since your 3.9L, 5.2L, 5.9L vehicle is OBD II equipped, you’ll usually see a misfire code (P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308) lighting up the check engine light on your instrument cluster.
