I had a very similar problem, my car (VW 4 Cyl) was fine until it warmed up. Then, slow sawtooth like acceleration and rather poor performance along with high gas consumption (low mpg). I figured at 200k the O2 sensor needed replacement and voila, it works like a charm now. O2 sensors are critical in that they advise the engine how rich or lean to run the mixture and if they ill-advise, due to fatigue or damage, the engine likely runs too rich which leads to unburned fuel going through to the catalytic converter and starts to fry it.
You can replace it yourself very easily just make sure you get a direct fit original part.
I would check for a plugged fuel filter or plugged exhaust system.
Also consider getting yourself a service manual for your car, as it often has troubleshooting tables for many kinds of problem.
As mentioned, plugged converter. Also there can be a transmission related problem, a drag possibly coming from a wheel (such as e-brake on or stuck, calipers not releasing. Too much fuel or too little fuel getting to the combustion chambers which can be a mechanical kind of problem like a fuel leak. worn plugs or a engine management control problem like an oxygen sensor or a throttle position sensor. Check the accelerator cable to see if it is excessively stretched and not allowing the engine to achieve maximum acceleration.
Also could be a fuel pump which is beginning to go. Thus the fuel is not regulated properly and affecting the usual acceleration. Lack of maintenance such as spark plugs, plugged filters, carbon build up.
Injectors. Get injector flush and change fuel filter.
This is a VERY common cause for sluggish cars seems even more common in deisels but not exclusive to them. The Air Flow Meter also known as maf sensor (Mass Air Flow) dont replace it right away though. First of all remove this component from the engine bay, it is normally located between the air filter box and the throttle body, then clean the element inside with some carb-cleaner (or air intake cleaner), replace the unit and give it a go.
FIRST, KEEP IT SIMPLE
Totally plugged fuel OR air filters can also cause this. Fuel and air filters are crucial maintenace items and are very cheap to replace. Before you spend big bucks on ANYTHING make sure both filters are replaced. Many expensive in-tank fuel pumps are ruined by a plugged fuel filter. The pump simply burns out trying to push fuel through a plugged filter. Many technicians that have worked for me have completed a $400.00 - $600.00 fuel pump replacement just to find only a plugged fuel filter. VERY embarrassing!!! Bestaluck
Just a couple things I have seen.
First off, if you are dealing with a vehicle that does not have computer controlled ignition timing then it would be a very good idea to check that the timing is set correctly.
Secondly, I have seen several occasions where someone has installed a timing belt one tooth off. Most vehicles with a timing belt off will idle and run as normal, but a very significant loss of power will occcur.
Third, be sure that the engine is the source of your car's sluggish nature. It could be a transmission issue. On many newer vehicles with computer controlled transmissions the transmission has a safe mode if there is a problem with the control systems. This will cause the transmission to start in second gear making the car feel very sluggish.
i would check your air mass meter they give loads of trouble with modern cars .it could also be your clutch slipping or your plug leads could be breaking down under load
Do mother birds really abandon their chicks if a human touches them?
How old is Danielle cohn?
What are peoples passwords on roblox?
What year would you graduate if you were born in 1974?
Was steven tyler ever on walker Texas ranger show?
How many triangles in a pentagram?
What is the opposite of wrong is the opposite of?
What's the most outdated thing you still use today?
What was Play-Doh originally made for?
What's the "Bastille" in Bastille Day?
If you could make one change to the education system, what would it be?
Is it safe to take a shower during a thunderstorm?
Why is the clock tower in London called Big Ben?
Why don't satellites crash into earth?
Where is the origin of the Panama hat?
Have you ever crashed a wedding or had your wedding crashed, if so what happened?
Which action will raise an exception?
What is the name of Lavanya in devyani serial?
How can solidarity bind the rich and poor?
What is the weight of one crore Indian rupees for a 500 note?
Where is a single element of data stored?
What criteria do you apply to judge the merits and demerits of an average?
BA-4 Why must a personal water craft operator follow U.S. Coast Guard rules and regulations?
What are some of the contradictory forces you are aware of in your life that make sexual development difficult?
Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.