Question about 1993 Nissan Altima

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Engine will not fire , turns over , has spark ,has fuel to injectors

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You need to check the fuel pressure at the rail. You can fuel there , but not enough pressure. check this and let me know, we can go from there
Randy

Posted on Nov 10, 2010

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2 Answers

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The dash gauges all work , fuel pumps are both good , the fuel pumps wont come on and the truck trys to fire when i turn the ignition on but wont , could this be a fuel regulator


did you check the fuel pressure pump on the frame rail for power and ground? have you verified no ignition spark to the spark plugs? have you checked for fire from the coil to the distributor cap? does the check engine light come on when you turn the key on? have you check for injector pulse and power at the fuel injectors? if the fuel pump won't come on and you have no ignition fire and no injector pulse, all of these systems are triggered by the ECM.

Aug 12, 2011 | 1990 Ford F150

1 Answer

I started my truck up this morning and let it idle as always everyday and all of a sudden the engine turned off like if someone fliped a switch or something...checked for spark at the coil and found no...


Your fuel pump runs for a few seconds when you turn the ignition is turned on because the fuel pressure naturally eases off when the engine is stopped, it runs until it gets to>< 30PSI and kicks off. This is normal, you know that fuel is reaching the injector line. On some engines there is a solenoid that has to trigger before fuel can go into the fuel lines for the injectors. If this solenoid isn't firing the computer will detect it and shut off the ignition. Look for some kinda solenoid or gadget where your fuel line come up in front of the fire wall. It should be close to where the fuel line splits off to go to each bank. Hope it;s a wire come unplugged and easy fixed. dhgill1949

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I HAVE A PONTIAC GRAND PRIX 97 WITH A SUPERCHARGED 3800 SERIES II ENGINE, IT TURNS OVER STRONG BUT WON'T FIRE UP... CHANGE SPARK PLUGS CLEANED AIR FILTER AND CHANGED FUEL RELAYS AND FUSES.... HELP!


does it have spark ?
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try reseting the alarm,maybe all thats needed.....

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My chevy s10 2001 turns over but does not start its not getting gas to injectors


Well you need fuel to the injectors, a spark, compression, air and a signal to the injectors to fire for the engine to start.
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1 Answer

On 1999 4.0 Explorer, engine turns over but does not start.


An engine needs three things to run : Fuel, Compression and Fire. Check to make sure you are getting fire to the spark plugs. The fuel pressure regulator on the injector rail may be bad. There is a schrader valve on the injector rail, check to see if there is fuel there. It is a valve like a tire valve, depress it slightly to see if there is fuel there.

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Have you tried any starting fluid? Do you have Spark on all the spark plugs? Whay was it parked adn did it run then?

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