Question about 1996 Nissan Altima

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Blinking Check engine light began today after my mechanic said that one of the fuel injector is not working properly, I ma going to get it fixed tomorrow morning, I need to drive about 35-40 miles to home and comeback to get it fixed is that ok or do I need to get it towed.

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Something is not clear here: blinking check engine light began today after my mechanic said...??? I guess you brought the automobile to the mechanic with the check engine light on and for sure you already drove 35-40 miles to home, then you already mess with your car.
In late-model cars, a blinking light usually indicates an engine misfire so severe that unburned fuel is being dumped into the exhaust system, where it can quickly damage the catalytic converter, requiring an expensive repair.
Then you are the only one who can answer your question:
If you already mess with your car you can still driving a while more.
If you really are taking care of your care why you did not leave your car with the mechanic?

Posted on Feb 03, 2010

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If the vehicle is experiencing an engine mis-fire, causing an overly rich condition and poor drivabilty, this can lead to other problems with the Catalytic converter becoming damaged. I'm not sure how the engine runs at this point, but I thought this was worth mentioning.

Posted on Feb 03, 2010

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1 Answer

Blinking check engine light


Blinking of Check Engine Light may be due to:
- Misfire (Ignition system malfunction).
- Evaporative system malfunction (Gas cap, fuel tank leakage, canister, vacuum leaks).
- Catalytic converter.
- Wiring and connectors.
It is better to have the car be diagnosed properly with a suitable diagnostic tool and to retrieve the error codes and freeze frame data to locate the problem.

Mar 24, 2015 | 2005 Toyota ECHO

1 Answer

Fuel injectors not spray


Are you sure it's not the fuel pump? I would be checking fuel pressure-the injectors need fuel under high pressure against them so they will spray out when pulsed.
What year is your Isuzu, and what size engine? Multiport injection has a higher pressure requirement than throttle body injection.
There should be a fuse for the injectors, check that. With key on, not start, the injectors would have power to them on the "injector drive circuit". In other words, constant power is supplied to the injectors when the key is on. The other wire at an injector is the ground wire. The ground wire goes into the engine computer. When the computer internally grounds the injector wire for a split second, the injector is energized and fuel is able to spray out.
Post back if you need help checking the injector circuit-both the power side and the ground side. You can check both with a test light.

Well, here it is anyway: ground a test light and probe the injector connector. With key on, one terminal should be hot-the drive circuit. Now move the test light lead to the POSITIVE battery post, and stick the test light probe into the injector terminal that did not light the test light-the ground terminal. Now have someone crank the engine over. If ground circuit is working, the test light should be blinking-meaning the computer is properly grounding the injector circuit. If both tests are good-a steady light on the power side (key on) and a blinking light on the ground side (engine cranking), the injector circuit is good.

Jan 28, 2014 | Isuzu Cars & Trucks

1 Answer

I have fuel coming to the motor but not going in it for a 98 chevy cavalier


Check the fuse for the injectors. If you have a test light, check for power to the injectors with key on. Pull off one injector connector to check for power. 2 wires to each injector-one is the power wire and powered anytime key is on. The other is the ground wire going into the computer, where it is internally grounded for a split second to pulse the injector-fuel is then sprayed out.
If power circuit is good, test the ground circuit: clip a test light lead to the POSITIVE POST of battery. Insert tester probe into the ground terminal of injector-the one that has no power with key on. Now have someone crank the engine over: test light should be blinking.
If both tests work-steady power to injectors with key on, and blinking tester on ground terminal with engine cranking, then the injector drive circuit and the ground circuit is working.
Let me know what you find. Good luck.

Dec 11, 2013 | 2000 Chevrolet Cavalier

1 Answer

2003 lincoln town car signature series:unfortunately, I have more than one problem though I have been unable to diagnose... This car sat for a long time... catalytic converter on passenge side is...


If the exhaust is clogged, you will have problems. The lite will flash if the system thinks there is a problem that may damage the cat, which you say is already faulty. I'd fix that first.
If you think it is fuel issue, use a gage and check proper fuel pressure.
The basics for problems at higher rpms, check for blockage of some kind, fuel--air--exhaust.

Mar 02, 2017 | Lincoln Town Car Cars & Trucks

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I have 2001 Silverado 4.3 liter, with a manual transmission. Today I started the truck up and it sputtered, and as I tried to drive it, it shook violently. I could smell exhaust noticeably, and the check...


it is not likely to be a fuel issue ... more likely it is your spark plugs or spark plug wiring. If one of your plugs is not firing right, then that piston will not function normally and cause a violent shake in the engine. This will be more noticeable when accelerating as more fuel is pumped into the piston and is not being burned off properly. This could cause the strong smell of exhaust, as the flow of the exhaust would not be normal.
It is also possible that your timing chain has skipped a tooth, causing a misfire in your engine -- this could also cause the exhaust flow to be abnormal, giving a strong smell of exhaust when the issue occurs.
Another possibility is that you have a bad fuel injector on one of your pistons ... but this is more likely to make your engine sluggish than cause it to shake violently -- usually a bad injector does not shoot enough gas into the piston, rather than pushing too much.
There is also the possibility that you have an issue with your exhaust manifold (though this is less likely and would probably make your vehicle very loud) -- if there is a hole in the exhaust that would cause the strong smell ... and the improper back pressure could cause your engine to work badly. Once again, this is unlikely to cause a violent shake in your engine ... but it is possible, so I mentioned it.
I would first check the spark plugs, then their wiring as these are the cheapest and easiest repairs that could resolve the issue. If neither of these is the problem, check to see if your car is reporting a problem code (under the passenger side of the dash there would be a blinking light -- count the number of blinks and use that number to reference an error code). If your engine is reporting an error code, that should help you diagnose the issue. If the plugs are not the problem, and the engine is not reporting an error code, I recommend taking the vehicle in to a mechanic. A professional with the vehicle in front of them will be able to provide you with a better diagnosis.

Jun 03, 2011 | 2001 Chevrolet Silverado 1500

2 Answers

My 2000 Dodge Neon had the Check Engine light go on last night. And it was still on this morning. When I started driving it, it would shake when I came to a stop. I also noticed that the longer I drove it...


CODE PO202 FUEL INJECTOR 2 CONTROL CIRCUIT MALFUNCTION CONDITIONS.POSSIBLE CAUSES INJECTOR 2 CONTROL CIRCUIT IS OPEN OR GROUNDED BETWEEN THE INJECTOR AND THE PCM.OR INJECTOR 2 HAS FAILED ALSO PCM HAVE FAILED.ONLY WAY TO TELL IF PCM FIRING INJECTOR 2 IS DISCONNECT 2 INJECTOR ELECTRICAL CONNECTOR HOOK NOID LIGHT TO INJECTOR 2 CONNECTOR CRANK ENGINE.THE NOID LIGHT SHOULD BE BLINKING.IF NOID LIGHT STEADY YOU HAVE FAULTY PCM.IF NOID LIGHT NOT WORKING YOU HAVE BAD GROUND OR OPEN WIRE ON INJECTOR 2 ELECTRICAL CONNECTOR.

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2 Answers

2004 Nissan Quest began shaking while driving then


SOUND LIKE FUEL PUMP.SCAN IT TO MAKE SURE.IT ALSO COULD BE FUEL PUMP RELAY OR FUSE.

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2 Answers

96 lexus es 300 blinking check engine light


Hi there;

#4 Miss-fire. All the things you are saying make a lot of sense. When the light is blinking the cylinder is actualy misfiring, & the smell you are smelling is the fuel that is not burning in the engine burning in the exahst. This can cause a lot of damage to the exausht if it is not repaired..
There is still a couple of things that need to be checked, first he needs to check to see if it is possibly a fuel injector that is sticking. He can do this easily by moving the #4 injector to another cylinder & run the car. When it starts missfiring he will need to see if it is still #4 or if it is the cylinder that he moved the injector to. if it is the new cylinder it is obviously the injector, if it is still #4 he will need to look into the possibility of the EGR valve sticking open or some other issue to do with valve timing or low compression.
I hope this helps
Farrout!

Mar 17, 2009 | 1999 Lexus ES 300

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