No fuel getting to engine. wont start. found the fuel injector fuse had blown and replaced. drove it home fine, died while parked? may have bumped curb wen parking? is there a way for me to RESET COMPUTER? HELP??? Single Woman Stuck in Tenn!
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A blown fuse is an indication of circuit overload. Did you replace the fuse with one of the same value or higher? is this the standard current rating for that circuit (usually marked on the fuse cover.
If the engine cranks remove a spark plug tape it to the intake manifold or somewhere where there is clean bare metal (please not near the battery) check for spark if ok reinstall plug if not replace the ECM fuse and relay with alternatives in the fuse box if this gets the pump going replace the ECM fuse and or relay then check for fuel turn on the ignition you should hear the pump run and then shutoff if not replace the pump fuse and relay with alternatives in the fuse box if this gets the pump going replace the pump fuse and or relay
Sounds like it could be the ignition module in the distributor. You have a throttle body instead of a carb. The injectors get a ground signal from the engine computer when they are supposed to open. The ignition module takes a signal from the pickup coil in the bottom of the distributor and decides when to fire the plugs and also the injectors.
If the injectors and the coil has power, it could be the module or the pickup coil.
Guessing when you say pressure that you have fuel pressure and that the fuel pump is working but the injectors aren't pulsing and injecting fuel into the cylinders. The way your fuel system works is that you should have constant power at each injector and the vehicles computer (the ECM) gets readings from different sensors and send a quick ground pulse in order to complete the circuit. each time the ECM sends a ground pulse, that's when the injector injects fuel so the ground signal/pulse is quick (on and off, one and off..you get the idea). The first thing I would do if your fuel pump is pumping and you have fuel pressure is check the fuse. The fuse you want to check should be a 20 amp fuse in the fuse panel under the hood of the vehicle in the engine compartment. Below is a diagram of the fuse layout and I have marked the fuse you need to check (the ECM 1 fuse). If that fuse is blown you will not have that constant power at the injectors. If blown replace and that should solve the problem unless it blows again which would mean you have a short. If it isn't blown make sure you have power at all time when the key is on. The pink wire at each injector should be the power wire. If no power you need to locate the open wire for that circuit (coming from that fuse to each injector). This is where I would start. If you need further instructions as far as any more testing procedures, reply/comment here or feel free to email me directly at firstname.lastname@example.org. Hope it's as simple as a fuse for your sake and I hope this helped.
Locate the "ground" side of the fuse connector (the side that goes to the injectors and DOES NOT go to the battery). Connect an ohm meter between the ground side of the fuse connector and the battery NEGATIVE post. The short will show a resistance of less than 5 ohms.
With the meter connected as above, start unplugging all of the connectors that are involved in that circuit one at a time to isolate the short. (you will know you found it when the resistance reading goes way up).
Fortunately, this is an easy one. That fuse feeds the injectors, and NOTHING else. (see partial Power Distribution diagram below) You most likely have a shorted injector. If unplugging the injectors one at a time does not find the problem child, then you need to check the wiring harness between the injectors and the fuse block to see if it is rubbed through or pinched.
if the injector fuse is blown then the car won`t start as its not getting fuel into the motor to fire.if the fuse keeps blowing then you could have an injector/s that is drawing too much or the injector driver in the ecm may not be any good and needs replacing or a used ecm.it could be a short some where in the wiring for the injector system that is going to ground.
the erg valve sensor would not stop the engine from starting,so you still have the problem you started with,lets go back to the orginal problem which was?.[car wont start]so im sorry to say its very seldom a sensor will not let an engine,i think you have another problem and a good up to date analizer should pick it up .adrian,,,,
two things will make the engine run, gas and fuel which you need to inspect if your engine getting them both. check the basic, from fuse and relay. next check you getting fuel to the injectors by seeing if the fuel pump if working, no fuel = faulty crank sensor or fuel pump. No sparks, check coils, wires and spark plugs. pull one plug out and ground it, and have a friend turn the engine over and see if you getting a good strong sparks. if its good = faulty cam sensors. to make thing easier you will need to get it plug in the computer and see if you get any code, this will help narrow it down instead guessing replacing parts hopping that will solved the problems and this can be very expensive route. Auto Zone usually does t for free ad engine diagnostics.