theres no signal to my injectors to open ppl tell me it could be my ECU wut do ya'll think ?

 

....

 

did this just happen randomly? what have you done to the car recently?

 

yeah it happen randomly well i thougt it wuz my distributor so i changed the cap,rotor,spark plugs and wires so its sparkin and gas is flowin cuz my pump is good and my filter is basicly new. then i tested the injector conections with a test light but nothin no signal to my injectors to open.

 

i'm a n00b when it comes to electrical, but i wonder if a test light would pick up on injector pulse.....i thought it was a bunch of on/off sequences, very rapid...?

are you sure you're getting fuel to the rail in that case?

and also you can't assume the spark is there because you changed cap, rotor, plugs & wires
seems like anytime i had trouble with spark, it was always something more expensive than those things LOL

 

One side of the injector clips should have voltage on them (only when the ignition is first turned to run and while the CEL is lit, and again once the distrubutor signals the ECU the engine is turning.). The volts come from the main relay. The ECU completes the circuit path to ground to trigger the injectors as required.

 

check the resistor box for your injectors with the test light or a multimeter

 

Icm little box in the distributor. I have so many problems with those things, on almost ever car I had !!!!!

P.S. Don't buy one from (Advance Auto Parts & Batteries)

(Advance Auto Farts & Tragities)

 

Thanks for the help. It turned out that my relay did not work......it sounded like it had sand or somethin in it...lol