What causes poor acceleration rough idle with 1994 Nissan sentra?
you probably have a dead cylinder, most likely from a bad spark plug wire, but there are many other possible causes ranging from a fouled plug to a burned valve.etc
OR...a plugged/dead fuel injector..SIMPLE to test (could try several rounds of techron in your gas)
Testing and changing a bad fuel injector is very simple. Just unplug the plastic wire connection while the engine is running (push the plastic clip in on the back to release the lock), no change in the way the engine runs indicates that your injector is bad, a good injector will cause the engine to run worse when the electrical connection is un-plugged. Simply remove the 2 screws and the cover, spray a little lubricant around the base while you turn the unit (cresent wrench works great) to loosen/break the o-ring seal, then gently but forcibly pry/pull the old injector straight out. Spray a little lubrication (wd-40 works fine) on the new o-rings and and push/seat the new unit in place, replace the cap and screws and re-connect the electrical before starting. Can be purchased cheap on e-bay!
Testing With a Multimeter/Ohmreader
1 Set your multimeter to check for resistance or turn on the ohmmeter.
2 Disconnect the wires to the injector.
3 Place your meter's leads on each of the two injector terminals. Read the meter display.
4 Check your service manual for your car's resistance number. Most fuel injectors have a resistance of between 10 to 18 ohms.
5 Test each injector. If any of the injector readings are higher or lower than they should be, you need to replace them.
1 Put a long screwdriver directly on the injector while the car is running.
2 Hold the handle up to your ear. You should be able to hear a rhythmic clicking sound. If you do, your injector is good. Hearing a clunk-clunk type noise means you have found your problem.
3 Hearing silence or unusual clicking patterns means either the injector, wires or plunger may be bad or sticking. You will either have to clean or replace them.
One of the reasons for a 2003 Nissan Sentra to run rough and stall out when it comes to stop is a bad oxygen sensor. Another cause for the running rough could also be a dirty air cleaner. Read More
I have an 05 sentra that shifts rough from 1rst to 2nd, especially when cold. You find any answers? thanks, Brian email@example.com Read More
Vacuum leak, bad spark plugs, plug wires, or all three. Replace all vacuum hoses, plugs and plug wires. Replace the hoses one at a time so as to not get confused. Read More
check dist. cap for water Read More
1994 Nissan sentra 1.6 ltr all of a sudden felt like it was running on 3 cylinders Running real rough and stalling out?
Check your spark plugs and fuel filter. Read More
On the 1.6 litre Sentra engines you should not have to change a timing chain until well over 250,000 miles if ever. This engine has an automatic chain tensioner that keeps the chain tight so that it will not jump teeth when stretched due to wear. I have heard of early 90s engines developing gear tooth cupping that prevents the engine from retaining proper ignition timing. This causes the engine to run a little rough… Read More
it's usually caused by carbon on the inside of the throttle body just remove air inlet and spray with carb clean Read More
the check engine light is blinking and my 03 Nissan exterra is running rough Read More
The year, make, model and engine info would help but in general it could be a vacuum leak or time for a tune up. Read More
why does my vr commodore idle rough when at complete stop Read More
A lot depends on when it is sputtering. Is it hesitating under acceleration? That is what happens most commonly in eclipses. It is probably a misfire in one of the cylinders. Change your plugs and wires. Read More
if the car is running rough or if plugs are in poor condition Read More
The EGR valve or the Knock Sensor could be the problem here. Repairs run about $500.00 at a shop or do it yourself for about $250.00 Read More
Ribosomes are embeded in rough ER.That makes it rough. Read More
Will idle rough and run rough at a steady speed, but run faily well under acceleration. Read More
A bad fuel injector. Read More
I am having the same problem, and poor acceleration!! Read More
Most likely a fuel leak or sticking injector. Try injector cleaner first to see if it helps. It probably won't but it's worth a try. Read More
I have a 1993 nissan frontier 4 cylinder with new plugs wires rotor cap fuel filter What causes a 1993 Nissan frontier 4 cylinder to run rough off and on?
On a 19 year old vehicle I would suspect you have a vacuum hose that is leaking. Replace all under hood vacuum hoses. Read More
There are several things that can cause your 1993 Nissan 300 to idle rough. The most common cause is dirty spark plugs. Bad spark plug wires can also cause the problem. Read More
It is a specific measure of a rate of change of velocity, also known as acceleration. As a rough approximation it is about equal to twice the gravitational acceleration on Earth. Read More
The first thing to check for rough idle and weak acceleration of a 1991 Tercel is the vacuum system for leaks. Also check to make sure that the EGR valve is not clogged, and that the timing has not jumped. Read More
it is rough beaceuse of the ribosomes that are sitting on it. the smooth RER have none. Read More
o2 sensor Read More
Poor fuel miliage, rough idle, no start, poor acceleration, stalling. Read More
The car will idle rough and hesitate during acceleration. Read More
Yes it does. The more "rough" the texture is, the more friction there will be. This will cause a decrease in speed and acceleration. Read More
MAF senso, or transmission fluid. Read More
a fracture. Read More
to rough of a pad Read More
you need to make sure your plugs and wires are ok, if it is still rough 9 out of 10 chances it is your intake manifold gasket. Read More
Your 1994 Ford Probe sounds as if it needs a tune-up. The reason for the rough idling and poor acceleration could also be very old motor oil, a very dirty air filter, or clogged fuel lines. It is best to bring the car in for service. Read More
The rough Endoplasmic Reticulum (RER) looks rough under a microsope bcoz ribosomes are attached to it. Read More
ASR, (Acceleration Slip Regulation) Read More
Misfire is usually caused by faulty wires or spark plugs or both. Throttle position sensor failure generally causes poor response to the throttle. That is poor acceleration, slow to return to idle and rough idle. Read More
What causes rough endoplasmic reticulun look rough under a miscrocope Rough er has ribosomes attached to it?
The rough endoplasmic reticulum(RER) appear rough when observed under a microscope because the outer region of the RER is studded with ribosomes which form sites for protein synthesis. Read More
Rough idle, loss of power, poor mileage. Read More
Change the spark plugs and wires... Change the spark plugs and wires... Read More
Acceleration is not represented on a speedometer, however, when you look at the speedo, if the needle is moving, you can get a rough idea of acceleration like this: If the needle is going clockwise (of generally indicating faster speeds) - you are accelerating. If the needle is going anticlockwise - you are decelerating. Speedometers measure speed. You would need an accelerometer to measure acceleration. Read More
could have: Check engine light, rough run, stall, poor fuel miliage. Also loss of power and pinging sound under loads such as hills or acceleration. Carbon build up causes this valve to stick in higher milage vehicles especially. Eowawa Read More
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A miss, black smoke and a strong gas smell. Also, bad acceleration, rough idling, and stalling. Read More
try using zmax i had the same thing on a car i had and it worked for me Read More
A rough surface; a lack of lubricants. Read More