Question about 1991 Nissan Stanza

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1991, Stanza.Check Engine Light.Code 44.Injector Leak. I have New Injectors . This is a Ground Problem In the Harness, I think.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Loringh
  • 185 Answers

SOURCE: 1991 nissan stanza starter problems

Hi Jim.

When you turn the key, you should at least hear the starter solenoid click. When you turn the key the ignition switch sends 12 volts to the Starter solenoid ( really just a relay). The Solenoid closes and applies 12 volts (at a high current) to the starter motor to crank the engine. If you have a way to measure voltage, you should get 12 volts at the small terminal on the starter solenoid. The solenoid is mounted on the top of the starter motor.If you get 12 volts but no cranking, the solenoid is not working. If you get 12 volts and the starter doesn't crank the starter is defective. At this [point take a small hammer and tap the starter motor, not hard, just medium. Sometimes this will cause the starter motor to catch next time you turn the key. Best bet is to remove the starter motor (with solenoid attached) and take it to an Auto Zone type store where they can check it out for you. Be dure you disconnect the ground terminal of the battery before you attempt to remove the starter motor.

Hope this helps Good luck loringh PS Please leave a rating for me if appropriate Thks

Posted on Nov 17, 2008

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  • 218 Answers

SOURCE: injector leak error code 45 1991 nissan d21 4cy 2wd

RGTGFG

Posted on May 04, 2009

SOURCE: no fuel at injectors in throttlebody

Check the wiring to the injectors and your fuel pump

Posted on Jun 20, 2009

  • 1 Answer

SOURCE: no injector pulse but power to injectors good fuel pressure good

did you disconnect the battery before you welded the exaust. other wise the ecu has had it

Posted on Aug 03, 2009

  • 1340 Answers

SOURCE: Error codes P0301(cylinder #1 misfire)

The ECM is very possible.I assume cylinder 4 injector is providing gas?The connection for cylinder 1 is probably a connector with pins correct?If you can bypass the ECM,that would get you closer if not give the answer.I would try using a wire straight from the battery to the injector electric somehow without damaging the wires.For years,if i had an extension cord which was old,I cut off the ends and save it just for troubleshooting occasions like this is a good example.If you do the bypass,try to hold the wire with something other than skin.I have leather gardening gloves,pliers.The gloves are better for steadiness and pliers are metal.It is not likely that it should melt but doing electrical work for so many years,an ounce of prevention is worth way way more than a pound of cure.If it did melt,it would stick and probably a couple weeks worth of pain.I would like to know how you make out.If you reply back to this post I will get an autolink to your post.Good luck! Greg
P.S.Was your error code from the car's own system and not a shop?I am trying to figure out what year that system started.
Thanks

Posted on Sep 18, 2010

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Are you certain that the pump is on when the no start occurs? Do you hear it turn on with key on, not start, when the engine won't fire? It should turn on for 2 seconds to pressurize the line to the injectors. If you could, check fuel pressure when the no start occurs.

If it is the injectors, buy a cheap "noid light" to check the injector circuit. Buy the one that fits your injector harness connectors. You pull off a connector to one injector and put the noid light in the connector. When cranking the engine over the noid light should be blinking-that is the pulse that fires the injectors. The injectors have battery voltage to them any time the key is on. When the ecm momentarily grounds the injector circuit (internally in the ecm), the injector is pulsed. If the noid light does not blink or even light up when cranking, the injector circuit has a problem in the power side or the ground side.

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I have replaced the fuel pump on my 1991 chevy cheyenne im getting fuel to the injectors but they aint working


Check the injector fuse. With key on, injectors should have constant power available to them on one wire. The other injector wire is ground wire. With constant power to injectors, all it takes to pulse the injectors is for the computer to ground the injector ground inside the computer for a split second, and pulse occurs, causing fuel to spray out the injectors.
So if injectors aren't working, either the injector drive circuit (the power to injectors) or the injector ground circuit is lost. You can buy a cheap "noid light" at any auto parts store, and check the injector circuit. Just plug the light into the injector connector and crank the engine over. If the light is blinking, circuit is good. If no light, the circuit has a problem, either on the drive side or the ground side.
Here's a way to check the ground circuit separately. Use a test light clipped to the Positive battery post. Probe the ground wire terminal of the injector connector while the engine is cranked over. The test light should be blinking-meaning the computer is grounding the circuit normally and would be causing the injectors to pulse, if power is available to them.

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Yes its 22 yrs old and a bit tired so trade it in for a newer car or better still a new peugeot diesel hybrid ,Or go to scrapyard and try the changing the injectors and also the temperature sensor ,then see how it runs

Apr 15, 2012 | 1990 Nissan Stanza

1 Answer

I have a 91 vette i replaced the injectors because it seamed like i was pullinga trailer after the new injectors were installed it wont start just turns over, i had replaced the pump prior, it will start...


The fuel pressure need to be 48psi to 55 psi. The fuel pressure has to be correct inorder for it to start you said you have fule pressure then we need to assume the pressure is good first check for power at the injector with key on engine off If you dont have power check the engine fuse box for a open fuel injector fuse replace if there is a open fuse , then check the ground signal that comes from the ECM this should be a on off ground signal Now you check this on left and right bank since your vehicle injector is bank fired . You will also need to check the injector relays there should be 2 one for left and one for right more than likely you have the ijector harness disconnected so follow the wire to its junction and make sure its realy connected not just looks connected

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1991 Honda Civic 1500 idles irregularly, with check engine light.


I think I would suspect the fuel injectors, especially since that is the code you are getting. Fuel injectors clog up, get dirty, stop working the way they should. They can be cleaned (you can remove them and send them to a company that cleans them and makes them like new, or, they can be cleaned in the car by some garages, or, you can get a can of Sea Foam spray and spray it into your throttle housing several times to try to do some cleaning that way, or, you can dump a can of Sea Foam (non-spray) into your gas tank and run it with the fuel through your injectors). You should probably check when you first start the car to see if you are getting any leakage from one or another injector (one or another may look moist or wet if the seals are leaking). You can also do the long screwdriver test (hold the bit of the screwdriver against each injector in turn and listen with your ear against the other end to see if each is clicking regularly). I would try the Sea Foam first.
I hope this is helpful in getting you started on a fix.

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