Question about 1995 Nissan Maxima

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Check emission light

My check emission light stays on and my car runs rough.

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Have you seen poor fuel economy? Does it run rough when warmed up? If so, chances are you have a bad oxygen sensor - it'll cause the car to run rich, which will hurt fuel mileage and cause rough running. You might also want to change the spark plugs - if they've been in there too long, they're probably covered in carbon and not firing as well as they should be, which will also cause issues with the smoothness of the engine.

Posted on Nov 09, 2008

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The emission monitoring system light is staying on and also the electronic stability control light is staying on . the car is driving very rough and has loss of power . can anyone help me


CHECK ENGINE EMISSION CONTROL REGULATOR,GET DIAGRAM OF YOUR ENGINE FIND WERE LOCATED TAKE OF CLEAN REPLACE,OFTEN HAPPENS ON CORSA CARS ,ALSO CHANGE SPARK PLUGS AS MAY BE MISFIRING LOSS OF POWER WITH WHAT I HAVE SAID .

Apr 27, 2015 | Cars & Trucks

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Runs rough idle


your idle valve may be dirty or needs replacing would check this as it controls idle. sits on the intake with wires coming out of it.

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97 honda civic idles rough and again at around 55 mph starts to run rough again


When the light comes on, one or more diagnostic trouble codes (DTC) are stored in the engine control module. These DTCs remain even if the light goes out. To address a Check Engine Light problem, the DTCs are retrieved and the appropriate troubleshooting information is followed in order to determine the problem.

The four most common Check Engine Light scenarios and what to do:
* The Check Engine Light turns on and off or flickers.
If the Check Engine Light comes on in the city but goes off on the freeway, then the fault is present during city driving conditions. Pay attention to whether or not the vehicle runs or drives any differently when the Check Engine Light illuminates. If vehicle performance does change, drive the car as little as possible and take it to be checked by a service professional as soon as possible. If there is no change in vehicle performance, you can drive home, but have it inspected as soon as possible. In this condition, you run a risk of the vehicle dying or not starting.

* The Check Engine Light comes on and stays on.
If the Check Engine Light illuminates constantly during driving with no noticeable driving or performance problems, there is a permanent fault in the emission control system. When this happens, the computer that controls the emission system usually has a backup program that runs while the fault is present. (These backup programs are often referred to as "limp home" mode programs.) You should get the vehicle serviced as soon as possible, but in most cases, the vehicle will continue to operate, though you run a risk of it dying or not starting.

* The Check Engine Light illuminates, stays on, and there are performance problems.
This means that a vital component of your emission control and engine management system has a serious problem. It usually involves a component or system needed for the vehicle to run at all. In most cases, drive the vehicle as little as possible. In many cases, the vehicle is not safe to drive at all -it could stop or stall out at any moment. It is best to pull over to a safe place and have the vehicle towed to an automotive diagnostician for a thorough inspection and repair.

* The Check Engine Light light comes on and blinks in a steady pattern while driving.
Don't confuse this steady pulsing of the Check Engine Light light (usually one or more flashes per second) with a flicker (see above). The Check Engine Light may stay on steadily or it may flash when the vehicle is accelerated. This is very serious. There is a severe failure of the emission control system that is causing the engine to misfire to the point that the catalytic converter is damaged each time the Check Engine Light flashes. It may mean that the catalytic converter is overheating to the point that it will glow red or, in extreme cases, start a fire on the underside of the vehicle. Immediately pull over to a safe place and have your vehicle towed to an automotive diagnostician for repair. Vehicles can be severely damaged and even destroyed by fire if this condition is ignored for too long.

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Aug 20, 2012 | 1997 Honda Civic

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Engine runs rough and loses power


this light tells you that there is a code in the computer and this should be checked out before any possible engine or emission damage.this needs to be one of the first thing that should be done.another thing how long has it been since a proper tune-up done to it.

Nov 15, 2011 | Cars & Trucks

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I have a 95 Jeep Grand Cherokee 5.2L V8. Check engine light stays on, runs rough, has a fuel smell sometimes, idles low at a stop unless in park. Emission code 32 comes up. EGR? What do I do to fix this?


On the right side of your intake manifold,you will see a round mushroom looking thing with a vacuum hose running to it. You can check it by reaching under it and feel for a fairly large hole. inside the hole, there is a metal diaphragm . While the engine is idling, push up on the diaphragm and the engine should run very rough. If it doesn't, replace the EGR valve. Thats what it's called. Very easy to replace. two bolts. good luck

Jul 17, 2011 | Jeep Grand Cherokee Cars & Trucks

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Emission light blinks and car runs rough


Mass air flow sensor is likely bad.

Any Mods been made to the car's engine?

Mass air flow Located in side the air intake box before the air hose. THat is in front of the car above the Turbo.

Or right above the air filter.

give me some more info...

May 26, 2009 | 1998 Volkswagen Passat

1 Answer

2009 ford fusion engine light stays on steady


You just have to disconnect the battery for 1/2 hour. then reconnect and drive for 10 miles so computer can relearn your engine again. It may run rough. You should have the key off when refueling because computer sensed a fuel vapor leak during fueling and turned the light on.

Also, you can always drive with a check engine light on. It just means you are not meeting emissions. Do not drive if it's flashing on and off.

May 23, 2009 | 2006 Ford Fusion

1 Answer

Service engine light stays on


the check engine ligth just means you are not passing emissions right now. Coud be due to loose fill cap at some time, or filling the tank with the key on.
Try disconnecting the battery ground cable for an hour. Then reconnect and drive for 10 miles until computer relearns engine changes. It may run rough for 10 miles.

If still on, go to Autozone and ask them to perform a free computer scan & get the fault code. It will tell you which sysem to check.

Apr 28, 2009 | 1997 Ford Windstar

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