The engine will turn but wont start.when you turn the switch on you do not hear fuel pump run just a click.took the battery cable off for bout 2 hours then it started and ran fine.the next morning it started ok and then when i got off work it started fine one time and i drove it maybe a couple hundred yards and cut it off and it would not start. i tried taking the battery cable off and letting it set for a while but it still would not start so i had to have it towed home.please help as this is my only way to ride and i don't have a way back and forth to work.it is firing and it is getting gas so don't know what to do next.
engine turns over no fire or fuel
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Re: engine turns but does not start
Check all of the battery terminals and cables and check the wires on the starter/selonoid, start from the battery and follow the cable out and check all conections , clean and tighten them and if it still does it the starter/selonoid is bad and needs replacement...
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the operation of most fuel pumps is controlled by the fuel pressure regulator
when the fuel pump gets to set pressure , the pump is switched of by the ECM at the relay level
maybe nothing wrong with your system just the system working as designed
if you have pressure in the fuel manifold when you turn the ignition on then the pump will not run but will if there is a fuel leak somewhere and the pressure drops off
Probably lost either spark or fuel to the engine. Try starting it with starting fluid into the intake. If nothing happens, check for spark on a spark plug wire- probably the ignition system. If it runs for a second or two with starting fluid, it is a fuel problem-check fuel pressure to see if the fuel pump is still working.
You say it won't turn over. Then your problem is with the battery, ignition switch, or starter. If you hear a click, click, click, then the battery is dead. If you hear nothing then it may be a bad ignition switch. Turn on the headlights and then attempt to start the engine. If you hear a click, the lights dim, and it will not turn over, the starter is suspect. Check the voltage at the battery with a voltmeter set to DC voltage on the 20 volt scale. These are the readings you look for.
If your battery is not reading at least 12.2 volts it needs charging or replacement. If the battery is over 3 years old, it more than likely needs replacing.
Now if I am missing what you are saying and the engine does turn over but will not start then turn on the ignition without trying to start the engine. You should hear the fuel pump run for a few seconds and then shut down. If you do not, then the fuse may be blown or the fuel pump relay may be defective. The fuel pump itself may also be bad. You may have to open the fuel filler door and remove the cap and listen at that location while someone else turns on the ignition in order to hear the pump running.
Turn the ignition key to the ON position without starting the engine
You should hear the fuel pump priming for about a few seconds then shutting itself off.
If not hear replace the engine oil pressure switch
The 3rd wire to that switch is the pumps prime switch lead.
When the engines oil pressure is reached the computer will shut that circuit off and turn on the fuel pump relay
If you hear the pump prime the relay maybe at fault instead
one good way to check that the fuel pump is running to listen. take the gas cap of and put you ear the the fuel tank fill neck. have a freind turn the key from the off position to the on position, but do not start the crank the engine over. you should hear a huming or wizzing sound for a few short moments. if you hear that sound the pump is running and more thatn likely pumping fuel.
2 things that you have to check on no starts every time. Spark at spark plug and fuel. Turn key to run position and listen at gas tank for fuel pump to run you should hear a whining noise. This will only happen for 3 to 4 seconds then it will shut off until engine starts. You can turn key off then to run every 3 to 4 to listen for fuel pump. You may hear the relay click off in engine area even if pump does not run. Fuel pump failure is pretty common. If pump is running pull spark plug out or put a spare plug into spark plug wire and have someone crank engine set plug on engine and watch for spark. This will give you a starting point. Hope it helps.
3. have one person listen in the gas tank at the gas cap opening.
4. have the other person turn the ignition switch to the ON position ONLY so as the dash lights come on. Do NOT attempt to start the engine.
5. As soon as the ignition key is turned to the ON position, The person at the gas tank should hear the fuel pump run for TWO SECONDS and then it should STOP.
6. Does it ?.
If you do NOT hear it run, in most cases the fault is the fuel pump relay or the fuel pump..
As soon as you turn ON the ignition switch to start the engine a 2 second ONLY battery voltage signal is sent from the computer to the fuel pump relay and from the relay back to the fuel pump in the fuel tank. This runs the fuel pump for ONLY 2 seconds of which pressurizes the fuel system in preparation to start the engine.
Once the engine starts, The computer BYPASSES the fuel pump relay and sends constant contionous battery voltage from the computer to the oil pressure switch of which is now CLOSED because the oil pressure is UP because the engine is running. Therefore the battery voltage flows thru the oil pressure switch back to the fuel pump to run the fuel pump constantly until you turn OFF the engine.
It looks like there is starter problem. One wire coming to it is loose or there is a short iside. You turn the ignitions it starts to rotate, wire is coming out and car loosing power. So have the wiring and starter checked. Also might be deposition on battery clemmas.
Hope that helps
Let me know if you need more info
it may be the pump fuel relay, which is under the dash on the driver side by the fuse panel.
here is a way to determine that.
when you turn the key on the on position
do you hear the fuel pump running while the engine light is on, and does the pump stop running afteer the engine light goes off?
if you do hear the pump running then it means that fuel pump is working fine ( since it way just replaced), but if you don't hear it running while the check engine light is on ( about 2 seconds) chances are the fuel pump relay is not working as it should.
also there are clicks that have to be heard on the starting process.
1 when you turn key to on possition
2 when the check engine light goes off( a click has to be heard just after it goes off)
3 after the car starts
If you don't hear this clicks, try to get your ear close the location of the fuel pump relay( near the fuse panel under the dash).
the fuse relay is just a bunch of circuits soldered, so you can get it to someone who knows how to solder and fix it.
or just get a replacement one at any junkyard. ( cheapp)