The injectors get power from a 15amp fuse and the computer controls on time by providing the ground circuit.
Do they have power ?
SOURCE: 99 OLDS ALERO 2.4 IDLING PROBLEM
intake manifold has a vacum leak or other vacum leak hose etc.
SOURCE: olds alero 2.4 idle fuel pressure
most likely idle air control sensor or low engine coolant I know sounds funny but IAC uses coolant to regulate idle. Idle air control valve or throttle body positioning sensor.
SOURCE: Where is the fuel pressure regulator on a 2003 oldsmobile alero?
There are 2 fuel lines connecting to the fuel injector rail. The larger line is the pressure line and the smaller line is the return line. The smaller line attaches to the fuel pressure regulator. You will notice that the regulator also has a vacuum line attached to it. If you are planning on changing it your self, let me know. There is a specific way to change it for safety reasons.
Let me know.
Regards,
SOURCE: throttle body injectors not fiering but there is fuel pressure
the injectors are fired thru the engine cotrol module but it gets its signal to fire from the pick-up located inside the distributor if you are loosing injector pulse only the ignition module is bad if you are also loosing spark when you loose injector pulse your pick up is causing the problem if you replace the pick-up i recomend you change the ignition module when doing so because they work together and you have to remove the distributor to change the pick-up
SOURCE: 1987 chevy s10 2.5l tbi will not start. changed
That eliminates the crankshaft and camshaft position sensors. Have you checked the fuel injector itself for an open winding or stuck valve plunger? There should not be a steady 12 volts to the injector--if good injector, it would be spraying fuel steadily into the throttle body. But at least the engine should try to run if poorly. Take the injector out, dry it off with air, and intermittently apply 12 volts to one terminal while grounding the other. You should hear a click from inside every time you touch 12 volts. If not, replace it. If it does, it may be plugged with debris. Try blowing through it in reverse with compressed air.
91 views
Usually answered in minutes!
×