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Spark at plugs? Fuel filter? Pressure on injector delivery line? Pressure relief valve? You may be able to measure fuel pressure at the pressure relief valve location. and return line. If you have spark, I'd say it's a fuel supply problem
Most likely it is the fuel pressure regulator..also check for spark here's some info for you.. The first thing to do is check for spark.
Disconnect #1 ignition wire at the spark plug. Install a spark tester into the end of the spark plug boot. Have an assistant crank the engine over and check for spark at the tester. Repeat this process at each spark plug. If any cylinder does not show spark, proceed to secondary component tests. If ALL secondary components show no spark, test components individually. If all cylinders test O.K., inspect for fouled spark plugs and clean or replace as necessary.
If spark checks out good, then you could have a fuel delivery problem. I would recommend to start by checking fuel pressure. Fuel injected cars are very fuel pressure sensitive. Fuel pressure is very important and must be within specifications! But if the pressure is low, it does not mean the pump is bad. A plugged fuel filter, a pinched line, and low voltage at the pump can contribute to low fuel pressure. All three must be check before replacing the pump! You can get a fuel pressure gage at a local auto parts store for cheap.
Fuel pressure testing is frequently overlooked but it is one of the common causes of poor performance. The test procedure must include testing that will insure normal fuel pressure under all operating conditions.
1. Fuel demands are low at idle.
2. Wide open throttle at high engine revs uses the most fuel.
3. Port injection fuel pressure must be reduced when manifold vacuum is high. Vacuum pulls fuel out of the injector causing it to deliver too much fuel if the pressure remains high. Manifold vacuum is used to open the pressure regulator at a lower pressure when vacuum is high.
Sounds like the problem is beyond your ability to diagnose
Too much fuel could be a leaking fuel injector or fuel pressure regulator.
Too much gas & a no start isn't really the issue
Did it start & run before you did the wires,I would check your work & mark the wires with a pen & also have diagram on paper before you start a job like that. Especially when if you have no reference material.
You put a mechanical fuel pressure gauge on a running engine & the apply vacuum with a hand pump to regulator to watch for pressure change,eg: pump pressure vs: regulator press
Have you checked for spark first? Sometimes a car won't start due to no spark. This condition is usually caused by: Security system, bad ignition module, crankshaft sensor, camshaft sensor. You check it by pulling a plug wire and putting a screwdriver in the wire to see if it arcs. If it is getting fire look for the fuel pressure release valve usually located on the fuel rail, looks like a tire valve stem. If it shoots out gas, and you hear the fuel pump prime, check the fuel pressure regulator. It could also be the timing. There are four things needed for a car to start: fuel, spark, timing, compression. As for your question, as far as I know there is one fuel pump, you have to drop the tank to fix it. Hope this helps.
Check the fuel pressure regulator and the EGR valve, I would check the fuel pressure regulator first and go from there. Good luck and keep me posted. Not sure what the pressure should be but thinking it's 62 to 65 PSI upon start up and should drop 5 PSI when engine running, check the vacuum line to the regulator.
Flel regulator will only affect max fuel pressure only will not cause it to not start. try replacing fuel filter first if still does not get fuel then you need to see if it is fuel related or if you have a spark at the spark plugs, pull off a spark plug boot and put screw driver in it hold 1/4 inch away from bare metal and crank engine if you get a spark then it's fuel relateed if no fuel it can be the crank shaft sensor or the cam shaft sensor. let me know if it has fire.
if you believe some one put water or bad gas in your tank, then you will have to drain the tank. however, to know if you have water in your gas, first disconnect fuel return line or the line that goes in to the fuel pressure regulator put some fuel in a clear glass and let it sit for 15min.if you see white cloud at the bottom of the glass or water. drain the tank. if not check for spark by removing one spark plug wire and spark plug. place the spark plug in the spark plug wire boot and touch it on the metal part of the car. do not touch the spark plug itself only the booth with the plug in the boot. have some one crank the car over. if you see spark, the spark part is ok. but if no spark, check the coil with a volt meter it should be 3 to 8 ohm if not replace the coil. if ok, check for fuel by removing one spark plug or two and see if they are wet,if wet pump is ok. if not check the fuel pump relay and fuse. if fuse is blown replace. check relay with a volt meter. resistance of the relay should be between 40 to 80 ohm. not mega ohm,if mega ohm, replace. if not , listen to the fuel pump while some one is cranking the car. if you donot hear the pump, disconnect the pump electrical connector and applive 12 volt and ground to the pump by using a jumper or any wire and listen for pump sound. if not replace the pump. if there is sound coming from the pump, it is ok. check the fuel pressure regulator with a fuel pressure gauge or simply disconnect the vaccum from the regulator and try starting the car. if fuel pump is ok and spark is ok. then it maybe the computer or the crank position signal. also check the fuel filter it may be clog.