Question about 1993 Nissan Pickup

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No fuel pressure or spark - 1993 Nissan Pickup

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For no spark the crank sensor located in the distributor can be at fault also the power transistor. Either one of these failure will result in injector have no pulse. But you state no fuel pressure. The common of these two is power starting at the ignition switch when the ignition switch is turned on the fuel pump relay is activated and so is power going to the distributor and coil and injector so look for a open fuse including the funny square ones you may have to take the clear cover off to see it clearly.

Posted on Feb 24, 2012

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1 Answer

How do I check for spark on a 2005 Honda civic


a timing light will tell you if you have spark and checking the pressure regulater on fuel rail will tell you if you have fuel pressure

Dec 01, 2014 | 2005 Honda Civic

1 Answer

I have a 1988 suburban 1500 4x4 5.7 liter v8. I replaced fuel pump and filter, will start and run for about 10 seconds then die and will not restart. Not getting fuel somehow. Injectors were also replaced....


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.

2010-08-21_174426_1.jpg

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.

Key Factors

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.2010-08-21_175858_1.gif

Mar 31, 2013 | Cars & Trucks

1 Answer

Car wont start


could be few different problems first u need to check for fuel pressure and spark
hook a fuel pressure gauge up and see if ur getting any fuel pressure if you have no fuel pressure u either have bad pump or out of gas (don't laugh i had cars come in shop for a no start that where just out gas)
if u have fuel pressure
then check for spark
take one spark plug wire of a spark plug and hold wire about 1/4 inch away from either the spark plug or engine block if u see a spark or hear one
if you have no spark your looking at a few different possibles Bad coil, ignition module, crank sensor, etc
if you have fuel pressure and spark but still no start u need to check for injector pluse (basically computer telling fuel injectors to open)
but now i think I'm getting over your head let me know if this helps and i try to walk u threw other things if this dont help

Jan 04, 2013 | 1997 Oldsmobile Achieva

1 Answer

Won't start,has spark, has fuel


Are you sure the injectors are spraying if the pressure is zero ?
Have you checked the fuel pressure regulator ?
Are the spark plugs dry ?

Dec 12, 2012 | 1998 Cadillac DeVille

1 Answer

Replaced ignition module, spark plug wires, distributor cap, fuel filter, and thermostat. car starts then after a while you turn it off and try to restart it, but all it does is crank, will not turn over....


COULD BE FUEL PUMP.CHECK FUEL PRESSURE SHOULD BE 40 - 47 PSI. WITH NEW FUEL FILTER. IF FUEL PRESSURE OKAY.YOUR SPARK PLUGS COULD BE FOULING OUT BY LEAKING FUEL INJECTORS.CLEAN FUEL INJECTORS BY ADDING A CAN OF SEAFOAM TO 3/4 TO FULL TANK OF GAS.WHEN YOU HOOK UP FUEL PRESSURE TESTER WITH IGNITION SWITCH ON ENGINE OFF FUEL PRESSURE SHOULD READ 40 PSI. TURN OFF IGNITION SWITCH IF FUEL PRESSURE DROPS FAST YOUR FUEL PUMP CHECK VALVE BAD.IF FUEL PRESSURE DROPS SLOWLY IN TEN MINUTES TIME FUEL INJECTORS IS LEAKING A NEED CLEANING.INJECTORS SPRAYING TIP CLOGGED WITH CARBON BUILD UP CAUSING THEM TO LEAK DOWN WHEN ENGINE OFF.

Jul 25, 2011 | 1991 Oldsmobile 88

1 Answer

My 02 Alero 2.2 won't start....replaced battery and had the starter tested which is fine...could it be the timing chain?


Ok you should check for fuel pressure and /or spark if you do not have fuel pressure then you might want to check fuses or fuel pump if you have fuel pressure not have any spark! Then you may want to check your spark module is bolted to the top of the valve cover. I don't think it would be the timing chain I would start with checking for fuel pressure and your spark module or just replace it if you have no spark. I hope this helps!

Jun 30, 2011 | 2002 Oldsmobile Alero

1 Answer

2001 dodge stratus (2.4l single cam) shut off while I was driving it. I'm at my wits' end to find a solution. I've physically inspected and cleaned injectors, changed plugs and wires, changed oil and...


Is the timing belt broken?

Do you have spark?

Do you have fuel pressure?

Start with the basics. If you have fuel pressure and no spark it could be a crank sensor. If you have spark and fuel pressure maybe a crank sensor. If you have spark and no fuel pressure maybe a fuel pump. If you have fuel pressure and no spark you could also have a broken timing belt which will also make the engine sound like it is turning over faster than normal.

Nov 21, 2010 | 2001 Dodge Stratus

2 Answers

No fuel to the spark plugs after a motor swap


must have a fuel pressure reg to hold line pressure in the fuel line could the 97 vehicle have a fuel pressure reg in the tank as part of the fuel pump assembly

Jun 07, 2010 | 1996 BMW 318

1 Answer

98 tahoe has new starter, new fuel pump, new alternator, and does not start the battery is also new. what should i do next?


Check if there is spark to each cylinder. If not, check crank shaft position sensor if no spark at all. If spark in some cylinders but not all, then check coil packs.

If spark is good, check that you have sufficient fuel pressure. You can use a fuel pressure tester or place a rag over the fuel pressure test port on the fuel rail, press in on the valve and see if there is pressure in the fuel rail. A tester would be more accurate.

Apr 17, 2010 | 1998 Chevrolet Tahoe

3 Answers

I have a '97 chevy tahoe. the engine cranks, but won't start. checked trouble codes & got cycliner misfire, O2 sensor, & catalytic converter codes. i've replaced plugs & wires. still won't...


first, check all the fuses
did you check to see if there's spark at spark plugs?
did you check the fuel pressure? you need to do that to isolate fuel and ignition system.
if there is no fuel then check for fuel pump operation
if there is no spark then check the ignition system (coil, module and wirings)
if you don't have either one then the problem is in the computer system such as crank sensor, and computer itself

Mar 28, 2010 | 1997 Chevrolet Tahoe

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